if a tennis ball is dropped from a height of 60 feet, on planet newton takes 3 seconds to hit the ground, what is the gravity on the planet?

Answers

Answer 1

The gravity of the planet is 40/3 or 13.33 feet per second squared.

If a tennis ball is dropped from a height of 60 feet, on planet newton takes 3 seconds to hit the ground, what is the gravity on the planet.

The formula to find out the gravity of a planet is given by:g = 2h/t²Here, h is the height from which the object was dropped, and t is the time taken for the object to hit the ground. Substituting the values in the formula, we get:g = 2 × 60/3² = 2 × 60/9 = 40/3The gravity of the planet is 40/3 or 13.33 feet per second squared. The gravity of the planet is 40/3 or 13.33 feet per second squared.

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Related Questions

Classify the pair of angles shown.​

Classify the pair of angles shown.

Answers

Answer:

complementary angles

Step-by-step explanation:

The two angles add to 90 degrees, which means they are complementary angles

a random variable from an experiment where outcomes are normally distributed a. can have any value between -infinity and infinity. b. can have only a few discrete values c. can have positive values d. can have no values

Answers

a random variable can have any value that is possible within the range of -infinity and infinity.So a. can have any value between -infinity and infinity.

A random variable from an experiment with outcomes that are normally distributed can take on any value between -infinity and infinity. This means that it can take on any real number, including fractions and decimals. It is not limited to only a few discrete values, nor does it have to be positive.

A random variable from an experiment with outcomes that are normally distributed can take on any real value between -infinity and infinity. This means that the variable is not limited to a few discrete values, nor does it have to be positive. Instead, it can have any value, no matter how small or large, and including fractions and decimals. Such a random variable can have any value that is possible within the range of -infinity and infinity.

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Please answer in an hour! You will get a thumbs up.
Question 1 (a)

Assume you purchase a new tractor on Jan 1, 2022 for a cost of $200,000. You estimate you will be able to use the tractor for 10 years, and it will have a salvage value of 10% of the original by the end of its useful life. Determine the book value at the end of the first year (December 31, 2022) using straight-line depreciation.

options:

$18,000

$180,000

$185,000

$182,000

Question 1 (b)
A balance sheet (using current and noncurrent assets and liabilities- no intermediate) shows that a farmer has current assets of $80,000 and owner equity of $100,000. Her current ratio is 2 and her debt/equity ratio is 1.0. Determine the farmer's noncurrent liabilities.

Question 1 (b) options:

$40,000

$60,000

$100,000

unable to determine

Answers

Question 1a

To calculate the book value at the end of the first year using straight-line depreciation, we need to determine the annual depreciation expense first. The straight-line method assumes that the asset depreciates by an equal amount each year over its useful life. Therefore, we can use the following formula to calculate the annual depreciation:

Annual Depreciation = (Cost - Salvage Value) / Useful Life

Substituting the given values, we get:

Annual Depreciation = ($200,000 - $20,000) / 10 years = $18,000 per year

This means that the tractor will depreciate by $18,000 each year for the next 10 years.

To determine the book value at the end of the first year, we need to subtract the depreciation expense for the year from the original cost of the tractor. Since one year has passed, the depreciation expense for the first year will be:

Depreciation Expense for Year 1 = $18,000

Therefore, the book value of the tractor at the end of the first year will be:

Book Value = Cost - Depreciation Expense for Year 1

= $200,000 - $18,000

= $182,000

So the book value of the tractor at the end of the first year, December 31, 2022, using straight-line depreciation is $182,000. so the answer is D

Question 1(b)

To determine the farmer's noncurrent liabilities, we need to use the information provided to calculate the total liabilities and then subtract the current liabilities from it. Here's the step-by-step solution:

Calculate the total current liabilities using the current ratio:

Current Ratio = Current Assets / Current Liabilities

2 = $80,000 / Current Liabilities

Current Liabilities = $80,000 / 2

Current Liabilities = $40,000

Calculate the total liabilities using the debt/equity ratio:

Debt/Equity Ratio = Total Liabilities / Owner Equity

1.0 = Total Liabilities / $100,000

Total Liabilities = $100,000 * 1.0

Total Liabilities = $100,000

Subtract the current liabilities from the total liabilities to get the noncurrent liabilities:

Noncurrent Liabilities = Total Liabilities - Current Liabilities

Noncurrent Liabilities = $100,000 - $40,000

Noncurrent Liabilities = $60,000

Therefore, the farmer's noncurrent liabilities are $60,000. so the answer is B.

Choose the best selection for thequadrilateral with vertices at thefollowing points:(0,0), (1,3), (5,0), (6,3)Hint: Start by graphing the points.Distance Formula: d= 7(x2 – x1)2 + (y2 - y1)2A. RectangleB. TrapezoidC. RhombusD. Parallelogram

Answers

Solution

We have the following coordinates:

(0,0), (1,3), (5,0), (6,3)

We can find the distance between the vertices like this:

\(d=\sqrt[]{(1-0)^2+(3-0)^2}=\sqrt[]{10}\)\(d=\sqrt[]{(5-0)^2+(0-0)^2}=5\)\(d=\sqrt[]{(6-0)^2+(3-0)^2}=\sqrt[]{45}\)\(d=\sqrt[]{(5-1)^2+(0-3)^2}=5\)\(d=\sqrt[]{(6-5)^2+(3-0)^2}=\sqrt[]{10}\)\(d=\sqrt[]{(6-0)^2+(3-0)^2}=\sqrt[]{45}\)

Then the correct answer for this case is:

D. Parallelogram

After selling some old books and toys, Gwen and her brother Max had 5 one-dollar bills, 6 quarters, and 8 dimes.
Part A:
What is the total amount of money earned?

Part B:
Max and Gwen decide to divide the money equally. Max said that he and Gwen cannot get even amounts of money because 5 one-dollar bills cannot be divided evenly. Do you agree with Max? Explain.

Answers

a) The total amount of money earned is 7.30 dollars.

b) Max is wrong, it is possible to divide the money equally between Gwen and Max, even though the total amount is an odd number.

a) To find the total amount of money earned, we need to convert the number of quarters and dimes to dollars.

6 quarters = 6 * 0.25 = 1.50 dollars

8 dimes = 8 * 0.10 = 0.80 dollars

The total amount of money earned is:

5 dollars + 1.50 dollars + 0.80 dollars = 7.30 dollars

b) Max is incorrect. The total amount of money earned is an odd number ($7.30), which means it is impossible to divide it equally between two people in whole dollar amounts. However, it is possible to divide the total amount equally if we allow for fractions of a dollar.

For example, if we split the money equally, Gwen and Max would each get $3.65. This means that Gwen would get 3 dollars and 65 cents, while Max would also get 3 dollars and 65 cents.

Therefore, it is possible to divide the money equally between Gwen and Max, even though the total amount is an odd number.

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You tie a spherical balloon that is 2 feet in diameter to a
stake in the ground. The string is 15 feet long. The wind
blows and you observe that the top of the balloon is
8 feet over from the stake, as shown in the diagram.
What is the height, b, of the balloon?
Show your work.
15 ft
2 ft
8 ft

Answers

Answer:

Step-by-step explanation:

What is the area of trapezoid ABCD?



Enter your answer as a decimal or whole number in the box. Do not round at any steps.

units²
Trapezoid A B C D on a coordinate plane with vertex A at negative 3 comma 2, vertex B at 1 comma 5, vertex C at negative 7 comma negative 3, and vertex D at 0 comma negative 2. Angle B is shown to be a right angle.

Answers

Given the coordinates above, the area of the trapezoid is approximately 41. See the explanation below.

What is a Trapezoid?

A trapezoid is a quadrilateral with at least one set of parallel sides in American and Canadian English. A trapezoid is known as a trapezium in British and other varieties of English.

For the calculation showing the above solution:

Step 1 - Given:

A = (-3,2)

B = (1, 5)  = ⊥

C = (-7, -3)

D = (0.-2)

Step 2 - To get the distance between the points we need to use the formula for Distance between two points which is given as:

d=√((x2 – x1)² + (y2 – y1)²).

Distance of Line AB =

√((1 – (-3))² + (5 – 2)²).

= √[(4)² + (3)²]

= √( 16 + 9)
= √25

AB= 5

Repeat this for  BC, CD, DA and we'd get the following

BC =  11.313708498985
CD = 7.0710678118655

DA = 5

Step 3  - From the above structure, [see attached] we then apply the formula for the area of a Trapezoid (Trapezium) which is given as:

A = [(a+b)/2] h

Where a = 5

b = 11.313708498985

h = 5

=  [(5+11.313708498985)/2] 5

= 40.7842712475

\(\approx\) 41

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What is the area of trapezoid ABCD?Enter your answer as a decimal or whole number in the box. Do not



what's 3× (-4) × (-5)​

Answers

Answer: 60

Step-by-step explanation:

first multiply like terms,

-4 x -5 = 20 [Multiplying two negative signs equal to positive]

3 x 20= 60

Could someone explain this to me?

Could someone explain this to me?

Answers

Answer:

B.97

Step-by-step explanation:

Heyy so angle ADC and DAB are supp to one another, thus

83 + DAB = 180 --> subtracting

DAB =97. B

Hope that made sense :)

I need some help here guys. I don't know what to do and I need this to be done until 11:59.. :(

I need some help here guys. I don't know what to do and I need this to be done until 11:59.. :(

Answers

Answer:  The graph is shown below. It is nonlinear

==========================================================

Explanation:

I used GeoGebra to make the graph. Desmos is another option I recommend.

The equation we graph is y = (1/2)^x since we're splitting the paper in half each time. This is an exponential decay function. Note how the curve slopes downhill when moving to the right.

It appears the curve touches or crosses the x axis; which is misleading. Instead, the curve is getting closer and closer to this horizontal asymptote. It will never reach the x axis. Think of it like an electric fence.

As the graph indicates, we don't have a straight line. Therefore, the function isn't linear. It's a nonlinear curve.

I need some help here guys. I don't know what to do and I need this to be done until 11:59.. :(

find the slope of the line that passes through the two given points of (-3, 4) and (-3, -8)

Answers

Answer:

it is not express because the line is parallel at y axis

Step-by-step explanation:

How can you show that two fractions are reciprocals?
Subtract the fraction from its reciprocal. Their difference will be 1.
Divide a fraction by its reciprocal. This will show that the quotient is always 1.
Multiply a fraction by its reciprocal to show that their product is always 1.
Add the fraction and its reciprocal. Their sum will be 1.

Answers

Answer:

To show that two fractions are reciprocals, you can multiply them together and check if the product is equal to 1. That is, if we have two fractions a/b and b/a, their product is:

(a/b) * (b/a) = ab / ba = 1

Therefore, if the product of two fractions is equal to 1, they are reciprocals of each other.

For example, let's say we have the fractions 2/5 and 5/2. We can multiply them together to check if they are reciprocals:

(2/5) * (5/2) = 1

Since the product is equal to 1, we can conclude that 2/5 and 5/2 are reciprocals of each other.

Darius has a cylindrical can that is completely full of sparkling water. He also has an empty cone-shaped paper cup. The height and radius of the can and cup are shown.



Darius pours sparkling water from the can into the paper cup until it is completely full. Approximately, how many centimeters high is the sparkling water left in the can?

Darius has a cylindrical can that is completely full of sparkling water. He also has an empty cone-shaped

Answers

Answer: 6.2

Step-by-step explanation:

A) what was the difference in price between 3 and 5 lb of candy *subtract*B) what was the difference in price between 5 and 7 lb?C) what was the rate of change or cost per one pound of candy hint remember you found the difference between the cost of 2 lb of candy D) who was correct Oscar or Olivia

A) what was the difference in price between 3 and 5 lb of candy *subtract*B) what was the difference

Answers

A. Substract the price of 3lb to the price of 5lb

\(19.95-11.97=7.98\)

B. Same procedure, this time substract the price of 5lb to the price of 7lb

\(27.93-19.95=7.98\)

C. To find the rate of change divide the difference between the price of 5lb and 7lb by 2lb.

\(c=\frac{7.98}{2}=3.99\)

The unit rate is $3.99 per pound of candy.

D. According to the picture, Oscar was correct.

Which is the best estimate for the cost of each crayon?
96 crayons whols thing for 10.56

Answers

To find the cost of each crayon, you divide the cost of all the crayons by the number of crayons. So 10.56 divided by 96 equals $ 0.11 per crayon. Hope this helps!

While walking past a flag pole, Tommy looked down and noticed his shadow. Use the diagram below to
find the length of his shadow.
PLS HELP

While walking past a flag pole, Tommy looked down and noticed his shadow. Use the diagram below tofind

Answers

Answer: 30ft

Step-by-step explanation:

Expand and simplify (2x+2)(2x+1)

Answers

Answer: 4x+3

Step-by-step explanation: 2x+2x=4x

                                             2x1=3

The simplified form of the equation is  4x² + 6x + 2.

What is simplification?

Simply put, to simplify is to make something simpler. Simplifying an equation, fraction, or issue in mathematics entails taking something complex and making it simpler. The issue is made simpler by calculations and problem-solving strategies. We can simplify fractions by removing all common elements from the numerator and denominator and putting the fraction in its simplest/lowest form.

Given the equation (2x + 2)(2x + 1)

using property, (a + b)(c + d) = a(c + d) + b(c + d)

(2x + 2)(2x + 1) = 2x(2x +1) + 2(2x + 1)

2x + 2)(2x + 1) = 2x(2x) + 2x(1) + 2(2x) + 2*1

2x + 2)(2x + 1) = 4x² + 2x + 4x + 2

2x + 2)(2x + 1) = 4x² + 6x + 2

Hence the Expand form of the equation is 4x² + 6x + 2.

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Express the answers to the following operations with the proper number of significant figures. (a) 8.370×1.3 ×10 (b) 4.265/2.0 (c) (1.2588×10 ^3)×(1.06×10 ^−2) (d) (1.11) ^1/2

Answers

The answers, rounded to the appropriate number of significant figures, are as follows:

(a) 1.088 ×\(10^2\)

(b) 2.132

(c) 1.3331 ×\(10^1\) and

(d) 1.05.

Let's calculate the answers to the given operations using the appropriate number of significant figures.

(a) 8.370×1.3×10

To perform this multiplication, we multiply the decimal numbers and add the exponents of 10:

8.370 × 1.3 × 10 = 10.881 × 10 = 1.0881 × \(10^2\)

Since the original numbers have four significant figures, we round the final answer to four significant figures:

1.088 × \(10^2\)

(b) 4.265/2.0

For division, we divide the decimal numbers:

4.265 ÷ 2.0 = 2.1325

Since both numbers have four significant figures, the answer should be rounded to four significant figures:

2.132

(c) (1.2588×\(10^3\))×(1.06×\(10^-^2\))

To multiply these numbers, we multiply the decimal numbers and add the exponents:

(1.2588 × \(10^3\)) × (1.06 × \(10^-^2\)) = 1.333128 × \(10^1\)

Since the original numbers have five significant figures, we round the final answer to five significant figures:

1.3331 × \(10^1\)

(d) \((1.11)^(^1^/^2^)\)

To calculate the square root, we raise the number to the power of 1/2:

\((1.11)^(^1^/^2^)\)= 1.0524

Since the original number has three significant figures, the answer should be rounded to three significant figures:

1.05

It's important to note that the significant figures in a result are determined by the original data and the operations performed. The final answers provided above reflect the appropriate number of significant figures based on the given information and the rules for significant figures.

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two long, parallel current-carrying wires are near one another and a distance l apart. each wire has a current i flowing through it. there is a point in space p that is l4 away from wire 1. it is determined the magnitude of the net magnetic field at this point is b . each wire has its current doubled to 2i . which of the following is a correct expression for the new magnetic field at point p ? responses b4

Answers

It is true that the current via each wire has been multiplied by two to get B' = (3/2)

Which current do you refer to?

Stream is the movement of electrical charge carriers, which are frequently electrons or atoms devoid of electrons. Currently is commonly depicted with the upper case I. The amperage is indeed the most frequently employed unit and is denoted by the letter A. While current and electron move in the opposing directions, current is the flow of electrons. When electrons go from negative to positive, current moves from positive to negative.

What are voltage and current?

Definition. Simply put, voltage—also known as electromotive force—is the amount of energy in one charge. Voltage, then, is the variation in magnetic potential between the two places. Current is the word again for movement of electrical currents.

B' = (3/2)(μ0i/πl)

Therefore, the correct expression for the new magnetic field at point is:

B' = (3/2)

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the complete question is

two long, parallel current-carrying wires are near one another and a distance l apart. each wire has

the date on which the loan amount is to be fully paid is called

Answers

The date on which the loan amount is to be fully paid is called the maturity date.

The maturity date is an essential component of a loan agreement, particularly for loans with a fixed repayment schedule. It represents the deadline by which the borrower is required to repay the entire loan amount, including any interest and fees.

When a loan is taken out, the lender and borrower agree upon the terms and conditions, including the repayment schedule. The maturity date is determined based on these terms, specifying the duration over which the borrower is expected to make regular payments.

For example, in a mortgage loan, the maturity date could be set for 30 years from the loan origination date. This means that the borrower has 30 years to repay the loan in full, either through monthly installments or other agreed-upon payment arrangements.

The maturity date is important for both the lender and the borrower as it establishes a clear timeline for the loan repayment. It helps ensure that the borrower understands the duration of the financial obligation and allows the lender to plan their cash flows and monitor the progress of the loan repayment.

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HELP ASAP (100 POINTS)
The equation for the line of best fit for change in temperature, y, to amount of snow, s, is given by ŷ = − 2.6s + 1.1. On Friday, the observed amount of snow was 1.3 inches and the temperature change was 1.2 degrees. Find and interpret the residual.

1.08; The line of best fit underpredicts the temperature change.
−1.08; The line of best fit overpredicts the temperature change.
−3.48; The line of best fit overpredicts the temperature change.
3.48; The line of best fit underpredicts the temperature change.

Answers

Answer:

3.48; The line of best fit underpredicts the temperature change.

Step-by-step explanation:

ŷ = − 2.6s + 1.1.

residual value = Measured value - Predicted value

Measured value = actual y-coordinate of the point, y

Predicted value = value of y from the equation, y1

residual value = (actual y-coordinate of the point, y) - (value of y from the equation, y1)

residual value = y - y1

For s = 1.3

     y  = 1.2

value of y from the equation, y1:

y1 = -2.6*(1.3) + 1.1

y1 = -3.38 + 1.1

y1 = -2.28

residual value = y - y1

residual value = 1.2 -  -2.28

residual value = 1.2 + 2.28

residual value = 3.48

Interpretation:

Since the predicted value is far less than the observed value, the line of best fit underpredicts the temperature change.

Answer:

3.48; The line of best fit underpredicts the temperature change.

Step-by-step explanation:

i took the test :)

Hannah bought 6 bananas for $5. What was the cost of the bananas in dollars per banana?

Answers

Answer:

$0.83 per banana

Step-by-step explanation:

$5/6 = $0.83

PLEASE HELP ILL GIVE BRAINLESS IM GOING TO FAIL

 PLEASE HELP ILL GIVE BRAINLESS IM GOING TO FAIL

Answers

x=20
AD= 23
DC= 23
AC= 46


The median means both sides of the line AC are equal.

Therefore: x+ 3 = 2x-17
and we can solve this for x

Subtract x from both sides
x-x = 2x-x -17
3 = x -17

Add 17 to both sides
3 +17 = x -17+17
20 = x

The length of AD is x + 3, replace x with 20:
20 + 3 = 23



The length of DC is the same as AD (because they’re separated by the median) so DC= 46

AC is the length of AD + DC,
23+23= 46.
AC= 46

A marathon runner who travels 5/2 miles in 1/4 hour how many miles can he run in 4 hours

Answers

Answer:

40 miles

Step-by-step explanation:

2.5 miles / .25 hours = 10 miles per hour

(10 miles per hour)(4 hours) = 40 miles

who can help me finish a course on edge ive done half of the course already its algebra !!

Answers

Sure, post the questions.

There are 16 kids on a soccer team. The players are either boys or girls, and they either prefer playing offense or defense. There are 6 boys who prefer offense, 3 boys who prefer defense, 5 girls who prefer offense, and 2 girls who prefer defense.

Suppose you choose one player from the team at random. Let event A be that the player is a girl, and event B be that the player prefers defense. Fine P(B | A).

Answers

Answer:

\(P(B|A)=\frac{2}{7}\)

Step-by-step explanation:

The probability of \(P(B|A)\) can be read as the probability of event B occurring given event A. In this question, event A occurs when the chosen player is a girl. There are 7 girls on the soccer team. Event B occurs when the chose player plays defense. Since \(P(B|A)\) stipulates that event A already occurred, we want the probability of choosing a player who prefers defense from the 7 girls. There are 2 girls who prefer defense, hence \(P(B|A)=\boxed{\frac{2}{7}}\).

Alternative:

For dependent events \(A\) and \(B\), the conditional probability of event B occurring given A is given by:

\(P(B|A)=P(B\cap A)\div P(A)\)

\(P(B\cap A)\) indicates the intersection of \(P(B)\) and \(P(A)\). In this case, it is the probability that both events occur. Since there are 16 kids on the soccer team and only 2 are girls and prefer defense, \(P(B\cap A)=\frac{2}{16}=\frac{1}{8}\). The probability of event A occurring (chosen player is a girl) is equal to the number of girls (7) divided by the number of kids on the team (16), hence \(P(A)=\frac{7}{16}\).

Therefore, the probability of event B occurring, given event A occurred, is equal to:

\(P(B|A)=\frac{1}{8}\div \frac{7}{16},\\\\P(B|A)=\frac{1}{8}\cdot \frac{16}{7}=\boxed{\frac{2}{7}}\)

25 N
10N
15 N
5. Net Force:
6. Direction of Movement:

Answers

10 N is correct give m brainlist pleaseeee !:)

What is 24/240 as a decimal

Answers

Answer:

0.1

Step-by-step explanation:

Just take 24/24 which is 1 and move the decimal one place to the left because there is an extra 0 on the denominator

PLS HELP WILL MARK YOU BRAINLIEST!!
No fake answers pls

PLS HELP WILL MARK YOU BRAINLIEST!!No fake answers pls

Answers

Answer:

1. =

Step-by-step explanation:

1.

R.H.S

5.2 + 5.a

(now taking 5 common)

5(2+a)

Which equation represents a circle centered at (3,5) and passing through the
point (-2,9)?
A. (r 3)² + (y – 5)² = 17
B. (+3)² + (y + 5)² = 17
C. (3)² + (y – 5)² = 41
D. (+3)2 + (y + 5)² = 41

Which equation represents a circle centered at (3,5) and passing through thepoint (-2,9)?A. (r 3) + (y

Answers

The equation of the circle centered at (3,5) and passing through point (-2,9) is given by:

(x - 3)² + (y - 5)² = 41.

What is the equation of a circle?

The equation of a circle of center \((x_0, y_0)\) and radius r is given by:

\((x - x_0)^2 + (y - y_0)^2 = r^2\)

For the circle graphed, we have that the circle is at (3,5), hence \(x_0 = 3, y_0 = 5\).

Then:

(x - 3)² + (y - 5)² = r²

The line passes through point (-2,9), that is, when x = -2, y = 9, hence the radius is found as follows:

(x - 3)² + (y - 5)² = r²

r² = (-2 - 3)² + (9 - 4)²

r² = 41.

Hence the equation is:

(x - 3)² + (y - 5)² = 41.

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Other Questions
From Newton's second law, the displacementy(t)of a mass in a mass-spring-dashpot system satisfiesmd2y/dt2=Fs+Fdwheremis the mass,Fsis the restoring force in the spring andFdis the damping force. For this problem assume that the initial conditions arey(0)=0,dy/dt(0)=v0(a) Suppose there is no damping, soFd=0, and the spring is linear, soFs=ky. What are the dimensions of the spring constantk? Nondimensionalise the resulting initial value problem usingy=yczandt=tcs. Your choice forycandtcshould result in no dimensionless products being left in the problem. (b) Now, in addition to a linear spring, suppose linear damping is included, soFd=cdy/dt.What are the dimensions for the damping constantc? Using the same scaling as in part (a), nondimensionalise the initial value problem. Your answer should contain a dimensionless parameterthat measures the strength of the damping. In particular, ifcis small thenis small. The system in this case is said to have weak damping. Using the parameters of the previous exercise, calculate the spontaneous emission wavelength and the optical power of the LED at a bias voltage of 1 V assuming that the extraction efficiency is 10% and the surface of the diode is 1 mm.The p and n sides of a GaAs LED have a doping concentration of 1018 cm-. The emission of light is caused mainly by the injection of electrons into the p-side. There is a recombination center in the active region with a time constant of 5 x 10-9 s. Assume that the lifetime of the electrons and the holes is the same and that De = 120 cm s-1, Dh = 0.01 De. What is the injection efficiency with bias voltage of 1 V, if the coefficient of band-to-band radiative recombination is By = 7.2 x 10-10 cm s-1? The fossil record shows that for many plant and animal groups, the time between speciation eventsA) is usually about 50,000 years. B) varies greatly, but averages 6.5 million years. C) is usually greater than 40 million years. D) is equivalent to the length of one hundred generations of a species. 1(a)You should attempt ALL questionsIdentify the components temperature and approximate composition (of wt.% C) at which the peritectic transformation occurs in Fe-C alloys. Explain why delta-ferrite is not expected to be retained on equilibrium cooling a steel of this composition through the invariant reaction.[4 marks] (b) When a Fe-0.4 wt% C steel is austenitised at 1000C for 30 minutes and is slow cooled to room temperature we expect eutectoid alpha-iron, pro-eutectoid alpha- iron and cementite to form. If instead a Fe-1.3 wt% C steel is austenitised at 1000C for 30 minutes and is slow cooled to room temperature we expect alpha- iron, eutectoid cementite and pro-eutectoid cementite to form.(c)(d)Use the equilibrium phase diagram together with the lever rule to describe as quantitatively as possible the key difference in terms of phases, phase fractions and microstructure between these alloys. Include sketches which illustrate (i) the stages in the development of the microstructures and (ii) the mechanisms of the phase transformations.[13 marks]If the steel described in (b) is quenched rapidly from 1000C to room temperature, describe the martensitic phase and microstructure which will be formed and explain why this is different from that formed in any of the cases above.[3 marks]If reflected light optical microscopy were used to confirm the formation of martensite (e.g., lath type or plate type or mixed) a sample of the steel in part (c) would be polished flat to a sub-micron surface finish, etched with sodium bisulfate solution and examined.(i)(ii)(iii)Explain the reason for the polishing and etching steps during sample preparation.[2 marks]Typically what type of objective lens would you need to use in terms both magnification and numerical aperture, in order to observe the fine martensitic microstructure?[2 marks] Depending on the exact martensitic microstructure, a variety of defects could be observed such as dislocations and twins. Describe the general form of both these defects and indicate how they might be formed.[3 marks] (iv) If not all the austenite had transformed to martensite, using an additional technique, how could you determine the crystallographic orientation relationship (i.e. the orientation of one crystal lattice relative to another) between the retained austenite and the martensite?[2 marks](e)The XRD pattern for the material produced in part (c) is shown in Figure Q1 below. The XRD pattern was collected using Cu Ka radiation.3Peak Phase 28 () (hkl)11 42.94 (121)|Intensity (arbitrary units)232143.83 (210)244.674144.99 (103)5145.94 (211)767148.59 (113)149.16 (122)12(8)8265.0242444648505254566062646620 (") Figure Q1The XRD pattern has been partially analysed, with the identification of two constituent phases, labelled as Phase 1 and 2 detailed in the table above. Each peak, which is labelled, has the 20 value listed in the accompanying table, and is identified as being part of Phase 1 or 2. Phase 2 is a cubic structure with a = 2.87 , Phase 1 is not cubic in structure.(i)(ii)Calculate the d-spacing to two decimal places for Peaks 1 and 2, the first two peaks present in the scanned region for Phase 1.[2 marks]According to the database, Phase 1 is not cubic and there should be additional peaks, the (002) and (202) peaks. Suggest two reasons why these peaks are not immediately apparent in the XRD plot and table.(iii)[2 marks] Phase 2 is cubic; however, it is not primitive cubic. Using peaks 3 and 8, determine which type of cubic unit cell Phase 2 is.[3 marks](iv) Draw the unit cells for the Miller indices identified for peaks 3 and 8.(v)[1 mark] Determine the Miller indices for the next peak at higher 20 for Phase 2 and calculate the 20 value to the nearest degree this will be detected at.[3 marks] Googl class doodle (*`*) Ranboo the mc How does the first stanza in "The Courage That My Mother Had" contribute to the poem's meaning? It explains why the speaker's mother is remembered for acts of courage. It establishes the speaker's respect and longing for her mother's courage. It describes the place where the speaker and her mother are from. It reveals that speaker's mother was a cold and emotionless person. Find the focal length of contact lenses that would allow a nearsighted person with a 145 cm far point to focus on the stars at night. f= ______ cm One number is 2 more than 4 times another. The sum of the numbers is 7 . Find the two numbers. How many orders can you fill in a night assuming you are open 4 hours a night and the order size is 1 dozen cookies? The gas in a balloon has a volume of 7.5 L at 100, kPa. The balloon is released intothe atmosphere, and the gas in it expands to a volume of 11 L. Assuming a constanttemperature, what is the pressure on the balloon at the new volume? What law didyou use to solve? The distance between the library and the grocery store is 4 centimeters on the map. The actual distance is 12 kilometers. What is the scale of the map?1 centimeter = 3 kilometers1 centimeter = One-third kilometer4 centimeters = 1 kilometer12 centimeters = 1 kilometer 3/5 - 1/3 I need the answer in 1 seconds Which of the following is a characteristic of hot reactor Jason is looking up at the light at the top of the lighthouse. The angle of elevation from Jason to the light is 34. The height of the lighthouse is 217 feet. a) Draw the right triangle. Label the given information on the triangle. b) Label the sides OPP, ADJ, and HYP. PUT A BOX AROUND EACH LABEL. c) Determine the distance from Jason to the light. d) Round your answer to the nearest tenth. Show all work. Tap the pic Answer it pls Is it abc or d I will give brainliest!!!!!!Which one !! Fast hurry *ANSWER IMMINENTLY GIVING 100 POINT BRAINIEST*rewrite each linear expression by factoring out the coefficient of the variable "-2x+7"4.3x-12 Circle the adverbs and adverbial Phrases in each sentence. Underline the verb that the adverb or adverb phrase modifies. 1. Alexandra practiced soccer frequently.2. Jeffrey always wanted to be an astronaut.3. Aaron's father sang the song loudly.4. The small girl eagerly licked her ice cream cone.5. My parents will arrive tomorrow.6. We skied on the tallest mountain.Circle the adverbs and adverbial phrases in each sentence.Underline the verb that the adverb or adverb phrase modifies.7. Alice fell into the rabbit hole.8. We expect rain all week.9. The angry bear in the forest growled menacingly.10. The captain quickly boarded the boat anchored in the harbor.11. The show will begin soon.12. The sneaky snake slithered swiftly and silently.13. Jessica and Ashleigh are reading their books in the yard.14. My next-door neighbors often visit their grandmother.15. Janie and her friend play hopscotch on the sidewalk. Analyse and discuss the different approaches that havecharacterised stakeholder theory and thereafter document a suitablestrategy that can be used to identify and map stakeholders. In an effort to reduce boarding time, an airline tries a new method of boarding its planes. Historically, only 32% of passengers were satisfied with the boarding process random sample of 32 passengers using the new boarding process found 44% who said they were satisfied with the boarding process, yielding a test statistic of _______. (a) What is the p-value of the hypothesis test to determine if this new boarding process resulted in improved passenger satisfaction?______ (4 decimals) (b) What is the meaning of a Type 11 error in this context? The airline concludes a greater proportion of passengers were satisfied, when in reality, the same proportion of passengers were satisfied. (c) Which significance level would minimize the likelihood of making a Type II error? a = 0.01a = 0.10 Find the circumference of a circle with a diameter of 28 meters. Round your answer to the nearest hundredth. *