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An electric light bulb mixer is used for 19.2 seconds. In that time, it transfers 1
536 J of energy.
Calculate the power output of the cake mixer.
A
I DONT KNOW​

Answer:

which sport are you referring to?

Explanation:

(Check the attached image to see how the finished graph should look like).

To determine these answers, analyze the graphic and find out the intervals of time when the y value was increasing.

From time= 0s to time = 2s; from time= 3s to time = 6s. We can affirm this because the graph had a positive slope, and the y value (which is the position) was increasing.

The dog is standing still from time= 2s to 3s and from time= 7s to 8s. We can affirm this because time passed and the position didn't increase or decrease in these parts of the graph.

For this question, apply the same logic applied in question "a", except that this time we are looking for the intervals where the y value decreases.

From time=6s to time= 7s the dog was moving backwards, because time passed and the y axis (position) decreased.

For this question, use the average velocity formula: \(a_v=\frac{p_2-p_1}{t_2-t_1}\);where \(p_2\) is the final position of the dog,\(p_1\) is the initial position, \(t_2\) is the time at position 2 and \(t_1\) is the time at position 1.

Get the values from the graph and substitute in the formula:

\(a_v=\frac{(60m)-(20m)}{(6s)-(3s)}=\frac{40m}{3s} =13.33m/s.\)

Answer:

(a)  0-2 seconds and 3-6 seconds

(b)  2-3 seconds and 7-8 seconds

(c)  6-7 seconds

(d) 13.33 m/s (2 d.p.) foward

Explanation:

See the attached graph for the plot of the given data.

The dog is moving forward between 0 - 2 seconds and 3 - 6 seconds because as time is increasing the position is increasing.

The dog is standing still between 2 - 3 seconds and 7 - 8 seconds because as time is increasing the position stays the same.

The dog is moving backwards between 6 - 7 seconds because as time is increasing the position is decreasing.

\(\boxed{\sf Speed=\dfrac{Distance}{Time}}\)

To find the average velocity between 3 - 6 seconds, divide the difference in position at these times by the difference in seconds:

\(\sf Average\:velocity=\dfrac{60-20}{6-3}=\dfrac{40}{3}=13.33\:m/s \: (2\:d.p.)\:forward\)

Pluto Mass: M Diameter: D | Charon: Mass: (1/8)M Diamater: (1/2)D

In order to find where there would be no net gravitational force we need to find where the force of gravity would be equal to each other

f(g) = Gm1(M)/r^2

f(p) = f(c) where p = Pluto and c = Charon

G(m1)(M)/r^2 = G(m1)(M/8)/(d-r)^2 --> start canceling variables

1/r^2 = (1/8)/(d-r)^2

1/r^2 = 1/(8)(d^2 - 2dr +r^2)

r^2 = 8d^2 - 16dr + 8r^2

7r^2 - 16dr + 8d^2 = 0

Solve for r using quadratic formula

r = 16d +- sqrt((16d)^2 - 4(7)(8d^2))/(14)

r = 16d +- sqrt(256d^2 - 224d^2) / 14

r = 16d +- sqrt(32d^2) / 14

r has to be a fraction of d because if it was greater than d, it would be on the other side of Charon

so

r = 16d - 5.6568d / 14 = 10.3432d/14 = ~0.7388d

Answer:

Answer is B. Non renewable resources are easy to store and transport.

Answer:

B) meteoroids.  The key word here is "generally."  Not when it enters the atmosphere or hits the surface of the Earth.  

Explanation:

Answer:

20cm

Explanation:

A convex lens has a positive focal length and the object placed in front of it produce both virtual and real image (image distance can be negative or positive depending on the nature of the image).

According to the lens equation

\(\frac{1}{f} = \frac{1}{u} + \frac{1}{v}\) where;

f is the focal length  of the lens

u is the object distance

v is the image distance

If the magnification is - 0.6

mag = v/u = -0.5

v = -0.5u

since v = 10cm

10 = -0.5u

u = -10/0.5

u =-20 cm

Substitute u = -20cm ( due to negative magnification)and v = 10cm into the lens formula to get the focal length f

\(\frac{1}{f} = \frac{1}{u} + \frac{1}{v}\\\frac{1}{f} = \frac{1}{-20} + \frac{1}{10}\\\frac{1}{f} = \frac{1}{-20} + \frac{1}{10}\\\frac{1}{f} = \frac{-1+2}{20} \\\frac{1}{f} = \frac{1}{20} \\cross \ multiply\\f = 20\\f = 20 cm\)

Hence the focal length of the convex lens is 20cm

Answer:

Answer: potassium (K) germanium (Ge) selenium (Se)

Explanation:

I just took the test, the farther to the right on the periodic table you go the less conductive it gets.

Answer:

Answer: potassium (K) germanium (Ge) selenium (Se)

Explanation:

The most conductive to least conductive is from left to right

It is not possible for a tree to survive if the inner part of the tree is missing. This is because, the inner part of the tree is vital for survival and health.

Trees are the plants which carry out the life processes that all plants share on the planet. It is not possible for a tree to survive without the inner part. If the entire inner part is missing, including the heartwood and sapwood, is missing. The inner part of a tree is vital to the survival as well as the health, as it is responsible for the transportation of water, nutrients, and sugars between the root and the leaves.

However, it is possible for a tree to survive if only some part of the inner part is missing. Trees have a remarkable ability to compartmentalize the damage and decay, which means that they can wall off or can isolate the injured or infected parts of the tree for the prevention of the spread of damage to the rest of the tree.

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Answer:

The First 8 Presidents

For this exercise, we're going to use a silly story made of silly sentences. The letters that represent the last names of these presidents are W, A, J, M, M, A, J, V. One silly sentence to help you remember this sequence is: Wilma and John made merry and just vanished

working memory.

sensory memory.

short-term memory.

long-term memory.

Answer:

c

Explanation:

search it up

Answer:

Option A.

Explanation:

Because this is a lunar eclipse it normally happens 2 times a year.  This is a decently rare phenomenon due to the positions they have to be in to make a lunar eclipse.  Therefore, it is option A.

There is more to the Earth than what we can see on the surface. In fact, if you were able to hold the Earth in your hand and slice it in half, you'd see that it has multiple layers. But of course, the interior of our world continues to hold some mysteries for us. Even as we intrepidly explore other worlds and deploy satellites into orbit, the inner recesses of our planet remains off limit from us.

However, advances in seismology have allowed us to learn a great deal about the Earth and the many layers that make it up. Each layer has its own properties, composition, and characteristics that affects many of the key processes of our planet. They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core. Let's take a look at them and see what they have going on.

Like all terrestrial planets, the Earth's interior is differentiated. This means that its internal structure consists of layers, arranged like the skin of an onion. Peel back one, and you find another, distinguished from the last by its chemical and geological properties, as well as vast differences in temperature and pressure.

Explanation:

Answer:

Explanation:

30 = e^5k

ln30 = lne^5k

ln30 = 5k

k = ln30/5

k = 0.68023947...

round to your heart's content.

Answer:

You would need to type the numbers in the question or you could have added a picture but you didn't so there is no way to answer this question. Have a nice day!

Answer:

with what? I can help but with what

Answer:

2

Explanation:

The two kinds of data that can be collected during an experiment are qualitative and quantitative data.

Numbers are used to convey quantitative data, which are measurements of values or counts. Numerical variables are the subject of quantitative data.

Qualitative data are represented by a name, symbol, or number code and are measurements of "types." Data concerning categorical variables make up qualitative data.

To provide a complete picture of a population, quantitative and qualitative data are frequently combined since they produce distinct results. For instance, if yearly income statistics are acquired (quantitative), occupation data might also be gathered (qualitative) to learn additional specifics about the average annual income for each type of profession.

Depending on whether the variable of interest is numerical or categorical, it is possible to acquire both quantitative and qualitative data from the same data unit.

Therefore, the two kinds of data that can be collected during an experiment are qualitative and quantitative data.

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The kinetic energy of the flywheel after 1 minute of rotation, given that it has a mass of 50 and radius of 40 cm is 32.4 KJ (Option D)

We'll begin by obtaining the velocity of the flywheel. This is shown below:

v = at

v = 0.6 × 60

v = 36 m/s

Finally, we shall determine the kinetic energy of the flywheel. Details below:

KE = ½mv²

KE = ½ × 50 × 36²

KE = 25 × 1296

KE = 32400 J

Divide by 1000 to express in KJ

KE = 32400 / 1000

KE = 32.4 KJ

Thus, the kinetic energy is 32.4 KJ (Option D)

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The acceleration of Thomas is 0.233 m/s^2.

Acceleration is the rate of change of velocity. Thomas the Train chugs along at a velocity of 2 m/s.

Thomas needs to go faster so more coal is shoveled into his engine and he accelerates for 10 seconds until he is going 4.33 m/s.

We are to find the acceleration of Thomas.

The formula for acceleration is given as :

acceleration = (final velocity - initial velocity) / time

In the given problem, the initial velocity of Thomas, u = 2 m/s.

The final velocity of Thomas, v = 4.33 m/s The time for which Thomas accelerates, t = 10 s.

Therefore, the acceleration of Thomas will be given as:

a = (v - u) / ta = (4.33 - 2) / 10s => 2.33 / 10s => 0.233 m/s^2

Thus, the acceleration of Thomas is 0.233 m/s^2.

To summarize, the acceleration of Thomas is 0.233 m/s^2.

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Answer:

its just built different

I could give you a big, fancy scientific answer, but it often comes down to the fact that the way that most instructors teach math is not the way the student(s) can most easily understand it.

Answer:

Free Fall Motion

Explanation:

Free Fall Motion

As learned in an earlier unit, free fall is a special type of motion in which the only force acting upon an object is gravity. Objects that are said to be undergoing free fall, are not encountering a significant force of air resistance; they are falling under the sole influence of gravity.

Answer:

person is accelerating downwards

Explanation:

We are told that the force of the person standing on the elevator is 800 N acting downwards.

We are also told that the upward force of the elevator on the person is 600 Newtons.

This means that Upward force is lesser than downward force and thus the person is accelerating downwards

Given:

To Find :

Solution:

As we know that Force can be calculated by ,

→ Force = mass * acceleration

→ 160N = 20kg * a

→ a = 160kg- m/s² ÷ 20kg

→ a = 8 m/s²

Hence the required answer is 8m/s².

The total distance is 105 kilometers and the total displacement is 15 kilometers east. Option C

To calculate the total distance, we add the distances traveled in each leg of the journey: 60 kilometers (from A to B) + 45 kilometers (from B back to A) = 105 kilometers.

However, displacement refers to the change in position of an object in a straight line from its starting point to its ending point. In this case, since the boat starts and ends at the same point (A), the total displacement is zero.

Hence The total distance is 105 kilometers and the total displacement is 15 kilometers east.

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Answer:

Two tuning forks with frequencies of 256 Hz and 512 Hz are struck. Which of the sounds will move faster through the air? Neither, the speed of sound is constant in air.

Answer:

33,333.3J/s

Explanation:

Energy expended which is the work done in Joule

=250,000J

Time taken to expend the energy =7.5s

Power =Unknown

Formula

Power = Work

Time

Hence, Power = 250,000J

7.5s

Power = 33,333.3J/s

Answer:

B.

Explanation:

Answer:C: The gravity on the moon is less than the gravity on Earth.

Explanation:

For a zero total momentum of two bodies,  the two velocities of the two bodies should be equal in magnitude and opposite in direction

According to the principle of conservation of linear momentum, the total momentum of an isolated system is constant.

\(Pi = P_f \\\\m_1u_1 + m_2u_2 = m_1v_1 + m_2 v_2\)

where;

When the total momentum is zero, the velocities of the two bodies will have equal values but opposite signs.

Thus, we can conclude that for a zero total momentum of the two bodies,  the two velocities should be equal in magnitude and opposite in direction

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Answer:

B. the Big Bang

Explanation:

Answer:

When the early universe cooled enough for atoms to form, Nucleosynthesis began.

hope it helps!