Answers
Answer: D. Heat transfer between the two things stops.
Related Questions
A body of mass 5.0 kg is suspended by a spring which stretches 10 cm when the mass is attached. It is then displaced downward an additional 5.0 cm and released. Its position as a function of time is approximately what? Group of answer choices
Answers
Answer:
0.05cos10t
Explanation:
X(t) = Acos(wt+φ)
The oscillation angular frequency can be calculated using below formula
w = √(k/M)
Where K is the spring constant
But we were given body mass of 5.0 kg
We know acceleration due to gravity as 9.8m)s^2
The lenghth of spring which stretches =10 cm
Then we can calculate the value of K
k = (5.0kg*9.8 m/s^2)/0.10 m
K= 490 N/m
Then if we substitute these values into the formula above we have
w = √(k/M)
w = √(490/5)
= 9.90 rad/s=10rads/s(approximately)
Its position as a function of time can be calculated using the below expresion
X(t) = Acos(wt+φ)
We were given amplitude of 5 cm , if we convert to metre = 0.05m
w=10rads/s
Then if we substitute we have
X(t)=0.05cos(10×t)
X(t)= 0.05cos10t
Therefore,Its position as a function of time=
X(t)= 0.05cos10t
What is the formula for the compound formed between Na and Se?
Answers
Answer:
gold
Explanation:
calculate kinetic energy of a planet using 5.97 x 10^24 kg mass and v at 30.29 km s-1
Answers
Answer:
2.74 × 10^33 J
Explanation:
the formula to calculate kinetic energy is:
1/2mv²
m= mass (kg)
v= velocity (m/s)
given that,
m = 5.97 × 10^24
v = 30.29 km s-1
= 30290 m s-1
1/2× 5.97 × 10^24 × 30290²
=2.74 × 10^33 J
Sulfur difluoride consists of a central sulfur atom and a fluorine atom on each side. Draw a model of the molecule formed by putting lines between the atoms to represent bonds so that each atom has the correct number of bonds.
Answers
Answer:
F - S - F
Explanation:
Answer:
F-S-F
Explanation:
PLATO ANSWER
A student slides a 0.45 kg textbook across a table. What will be the kinetic energy of the textbook
if its speed is 0.20 m/s?
Answers
Answer:
Below
Explanation:
Kinetic Energy = 1/2 * m * v^2
= 1/2 * .45 * .2^2 = .009 J
Important Formulas:
\(KE=.5mv^2\)
Kinetic Energy(measured in joules) = .5 * mass(measured in kg) * velocity(measured in m/s)^2
__________________________________________________________
Given:
\(m=0.45kg\)
\(v=0.20m/s\)
\(KE=?\)
__________________________________________________________
\(KE=.5mv^2\)
\(KE=.5(0.45)(0.20)^2\)
__________________________________________________________
\(\fbox{KE = 0.009J}\)
The data points you have taken on your lab graphs roughly form a straight line. How do you interpret the slope of this line?
Steeper slopes mean higher speeds.
Steeper slopes mean lower speeds.
Steeper slopes mean higher error.
Steeper slopes mean lower error.
The slope has no relation to speed or error
Answers
Answer: Steeper slopes mean lower speeds.
Explanation:
But if it’s a wavy slope then it’s a
A scale measures the weight of a light object to be 11.000 lbs ± 0.034 lbs. what is the uncertainty if this same scale is use to measure an object that weights 78.000 lbs? Assume that the percent uncertainty of the scale remains constant
1)0.034lbs
2)0.044lbs
3)0.310lbs
4)0.240Ibls
Answers
The uncertainty of the heavy object if the scale remains constant is 0.24 lbs.
What is uncertainty in measurement?This is the error associated in an attempt measure the object accurately.The percent uncertainty in measuring the light weight object is calculated as follows;
\(= \frac{0.034}{11} \times 100\%\\\\= 0.309\%\)
The uncertainty of the heavy object if the scale remains constant is calculated as follows;
\(= \frac{0.309}{100} \times 78.0 \ lbs\\\\= 0.24 \ lbs\)
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Tell me the max amount you should owe on this card.
Your credit limit is $1,000.
What is the max you should ever owe on this card?
$
Your credit limit is $2,500.
What is the max you should ever owe on this card?
$
Answers
Answer:
the max is 2,500 or less
Explanation:
because you cant owe anymore
used primarily in the united states for electricity generation: blank target 1 of 8 2. remains of ancient organisms, modified underground for long periods by temperature and pressure: blank target 2 of 8 3. the world's most abundant fossil fuel: blank target 3 of 8 4. a mixture of hundreds or thousands of different hydrocarbon molecules: blank target 4 of 8 5. primary fuel used in the united states for space and water heating: blanktarget 5 of 8 6. created very slowly and considered nonrenewable at current extraction rates: blanktarget 6 of 8 7. used primarily in the united states as a source of vehicle fuels: blanktarget 7 of 8 8. produces the least carbon dioxide per unit energy when combusted: blanktarget 8 of 8
Answers
Coal used primarily in the united states for electricity generation.
A readily combustible sedimentary deposit made primarily of carbon, coal is called. Black or brownish-black in color, coal is composed of more than 50% carbonaceous material by weight and more than 70% carbonaceous material by volume (including inherent moisture). It is made of plant remains that have undergone geologic pressure and heat been compacted, hardened, chemically changed, and metamorphosed.
The majority of the sites where coal is found worldwide, including in the United States, are where ancient forests and marshes formerly stood before being buried and compacted over millions of years. In the eastern United States, in the Appalachian basin, there are some of the greatest coal resources. In the United States, coal produced 23% of the electricity in 2021, which was less than natural gas plants and more than renewable energy or nuclear power. 19% of total generating capacity was coal.
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8- A bottle of water weighs 25 pounds. If the bottle weighs 5 pounds, how many gal does it contain ?
Answers
A bottle of water weighs 25 pounds. If the bottle weighs 5 pounds, then it contains 0.599132136584 gal .
A bottle weighs 25 pounds ,
we know that 1 Gallon = 8.34 Lb
so, 25 lb = 2.995660682922 gal
and if the bottle weighs 5 pounds then ,
5 lb = 0.599132136584 gal
hence, 2.4 gal less.
Define pound.
a. a unit of weight equivalent to l6 ounces avoirdupois (453.59237 grams), the fundamental unit of weight in the FPS system;
b. a unit of weight equal to 12 ounces troy or 12 ounces apothecaries' (373.2418 grams).
It is an imperial unit of mass or weight measurement.
Define gallons.
In both imperial and US customary units, the gallon is a unit of volume.
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What force produces an extension of 2.5 cm?
Answers
F = 2.5 N
Explanation:
The force that produces an extension of 2.5 cm in a spring depends on the spring constant, which is a measure of the stiffness of the spring. The force required to extend or compress a spring by a certain amount is given by Hooke's law, which states that the force is proportional to the displacement:
F = k*x
where F is the force, x is the displacement or extension of the spring, and k is the spring constant.
If we know the spring constant, we can calculate the force required to produce an extension of 2.5 cm using the equation above.
For example, if the spring constant is 100 N/m, then the force required to produce an extension of 2.5 cm would be:
F = k*x
F = (100 N/m)*(0.025 m)
F = 2.5 N
Therefore, a force of 2.5 N would produce an extension of 2.5 cm in a spring with a spring constant of 100 N/m
1a) Assuming a flat slope for Weber's Law for weight detection what else might be true? (Note: in the real world humans do not have a flat slope for weight detection so the correct answer might be ridiculous in the real world)A. The JND is always 5 poundsB. The JND is always 10% of the starting weightC. The JND is always equal to the starting weightD. Weber's Law would be proven false1b) What might, in the real world, display a flat slope for weight detection?A. A cameraB. An electric scaleC. A humanD. An airplane
Answers
In the real world, humans do not have a flat slope for weight detection. However, some devices such as cameras, electric scales, and airplanes may display a flat slope for weight detection.
For instance, when detecting a change in weight with a hand-held device, humans would be less accurate than with a more sophisticated device such as an electric scale. Furthermore, when detecting a change of weight in an environment with multiple stimuli, such as a room filled with noise, humans may not be able to accurately detect the change at all.
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what is the effect of divorce on females?
Answers
Answer:
Numerous studies have shown that the economic costs of divorce fall more heavily on women. After separation, women experience a sharper decline in household income and a greater poverty risk (Smock 1994; Smock and Manning
Answer:
sadness and stress...................
Which hypothesis cannot be tested experimentally?
Question 13 options:
The average speed of air molecules increases with temperature.
Ghosts are the souls of people who have died.
The structure of any part of the broccoli is similar to the whole structure of the broccoli.
A vegetarian is less likely to be affected by night blindness.
Answers
Ghosts are the souls of people who have died cannot be tested experimentally.
An experiment is a technique used in science to create a discovery, test a theory, or show a known truth. because owing to a lack of technology, we might not be able to analyze souls.Any procedure where measurements are taken and tests are run to support or disprove a hypothesis is referred to as a scientific experiment.The scientific experiment is a component of the scientific method as a whole. This process is a series of sequential processes used to learn new information about any subject.The steps are: making a discovery. posing a query and developing a theory. scientific tests to validate the theory and gather data Analyzing the findings and making judgments presenting the findingsTo know more about experiment visit : https://brainly.com/question/9199868
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A cylinder is filled with a liquid of density d upto a height h. If the beaker is at rest ,then the mean pressure on the wall is?
Answers
Answer:
h over 2 dg
Explanation:
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The load across a 12 V battery consists of a series combination of three resistors 34 Ω, 42Ω, and 30Ω. What is the total resistance of the load? Answer in units of Ω. What is the current in the circuit? Answer in units of A.
Answers
Answer:
The total resistance is 106 Ω and the current in the circuit is 0.11 A.
Explanation:
Given that,
Voltage of the battery, V = 12 V
Resistors 34 Ω, 42Ω, and 30Ω are connected in series.
The total resistance is given by :}
R = 34 + 42 +30
= 106Ω
Let I is the total current in the circuit. Using ohm's law to find it such that,
\(I=\dfrac{V}{R}\\\\I=\dfrac{12}{106}\\\\I=0.11\ A\)
Hence, the total resistance is 106 Ω and the current in the circuit is 0.11 A.
If the frequency increased, how would the change impact the wave speed and wavelength?
Answers
Answer:
The frequency and wavelength of a wave are related. When frequency increases more wave crests pass a fixed point each second. That means the wavelength shortens. So, as frequency increases, wavelength decreases.
Explanation:
Answer: The waves travel at the same speed, but the observed frequency depends on any relative motion between the observer and source. When the observed frequency changes, so does the wavelength. If the observer and source are moving toward each other, then the frequency increases and the wavelength decreases.
Explanation: I hope this helped you understand
please help AFAP........................
Answers
Answer:
afap
Explanation:
If magma is defined as molten rock material,do you need to melt rocks to form magma?
Answers
Explanation: Magma is molten rock found below the earth's surface. ... On the other hand, if the rocks are under greater pressure, they will require higher temperatures to melt. Melting of rocks typically occurs in the lower lithosphere or upper asthenosphere. The earth gets hot pretty quickly as you dig down from the earth's surface.
Two horizontal forces act on an object. One force has a magnitude of 75.0 N and is directed due 30.0° south of east. The other force has a magnitude of 55.0 N and is directed due 70.0° north of west. What is the magnitude and direction of the sum of the two force vectors. Select one: 122.4 N, 43.2° north of east 130.0 N, 40.0° south of east 46.6 N, 17.1° south of east 48.3 N, 17.1° north of east 20.0 N, 40.0° north of east
Answers
Explanation:
70 degrees North of west = 110 degrees
30 degrees southof east = - 30 degrees:
Vertical components added together =
75 (sin -30) + 55 sin 110 = 14.18 N
Horizontal components added together =
75 cos (-30) + 55 cos 110 = 46.14 N
Magnitude = sqrt ( 14.18^2 + 46.14^2 ) = 48.3 N
direction = arctan ( 14.18 / 46.14) = ~ 17.1 North of East
a) a drone flies 150 m to southwest (directly between south and west), then flies 85 m directly south, and finally flies 550 m in the direction 35 degrees north of east. Use the analytical method to find the resultant displacement of the drone (magnitude and direction)
you can help with a
Answers
The resultant of the displacement is 336.5m
What is resolution of vectors?The process of splitting a vector into its components is called resolution of the vector. The vectors are splitted into vertical and horizontal component.
For the first displacement;
The vertical component = - 150 sin45 = -106.1 m
The horizontal component = - 150 cos 45° = -106.1 m
For the second displacement;
The vertical displacement = - 85sin90 = -85
The horizontal component = 0
For the third displacement;
The vertical displacement = 550 sin55 = 450.5
The horizontal displacement = 550 cos 55 = 315.5
Sum of vertical component = 450.5-85-106.1 = 263.4
sum of horizontal component = 315.5 -106.1 = 209.4
Using Pythagorean theorem
R = √ 263.4² + 209.4²
R = √113227.92
R = 336.5m
The resultant angle = tan^-1( 263.4/209.4)
= tan^-1(1.26)
= 51.56°
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If vector A represents displacement from point O(x1, y1,z1) and P(x2, Yz, Z2) ؟
Answers
The magnitude of the displacement of the vector A is determined as 6.2 units.
What is the magnitude of displacement of the vector?The magnitude of the displacement of the vector is calculated as follows;
| A | = √[ (x₂ - x₁ )² + (y₂ - y₁ )² + (z₂ - z₁ )²]
where;
| A | is the magnitude of vector Ax₂ and x₁ are the final and initial position on x - coordinate respectively.y₂ and y₁ are the final and initial position on y - coordinate respectively.z₂ and z₁ are the final and initial position on z- coordinate respectively.The magnitude of vector A is calculated as;
| A | = √[ (2 - 0 )² + (3 - 0 )² + (5 - 0 )²]
| A | = √ (4 + 9 + 25)
| A | = √ ( 38)
| A | = 6.2 units
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The complete question is below;
If vector A represents displacement from point O(x1, y1,z1) and P(x2, Yz, Z2). find the magnitude of the displacement of vector A.
I heat 29.292 g of an unknown metal up to 99.9 °C. While it is heating, I weigh out 27.777 g of water, and find its initial
temperature is 22.1 "C. When I mix the metal and water in an insulated container, the temperature of the mixture rises
to 29.3 °C.
What is the most likely specific heat of the metal?
Select one:
a. 4.8 (104) cal / (g *C)
b. 9.7 (102) cal/(g*C)
c. 7.9 (10³) cal/ (g*C)
Od: 0.13 cal / (g°C)
e. 9.8 (105) cal / (g°C)
Answers
The specific heat capacity of the metal, given that 27.777 g of water at 22.1 °C was mixed with the metal is 9.7×10⁻² Cal/gºC
How do I determine the specific heat capacity of the metal?Step 1: Obtain the heat absorbed by the water. This is shown below:
Mass of water (M) = 27.777 gInitial temperature (T₁) = 22.1 °CFinal temperature (T₂) = 29.3 °CTemperature change (ΔT) = 29.3 - 22.1 = 7.2 °CSpecific heat capacity of water (C) = 1 Cal/gºC Heat absorbed (Q) =?Q = MCΔT
= 27.777 × 1 × 7.2
= 199.9944 Cal
Step 2: Determine the specific heat capacity of the metal using the heat absorbed by the water. Details below:
Heat absorbed by water (Q) = 199.9944 CalHeat released by metal (Q) = -199.9944 CalMass of metal (M) = 29.292 gInitial temperature (T₁) = 99.9 °CFinal temperature (T₂) = 29.3 °CTemperature change (ΔT) = 29.3 - 99.9 = -70.6 °CSpecific heat capacity of metal (C) = ?Q = MCΔT
-199.9944 = 29.292 × C × -70.6
-199.9944 = -2068.0152 × C
Divide both sides by -2068.0152
C = -199.9944 / -2068.0152
= 9.7×10⁻² Cal/gºC
Thus, the specific heat capacity of the metal is 9.7×10⁻² Cal/gºC. None of the options are correct.
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Who is your greatest scientist, and what was his or her achievement? « brainliest assured»
Answers
Answer:
My greatest scientist is David Baltimore.
Explanation:
David Baltimore is an American biologist, university administrator, and 1975 Nobel laureate in Physiology or Medicine. He is currently President Emeritus and Distinguished Professor of Biology at the California Institute of Technology, where he served as president from 1997 to 2006.
Hope I helped! Ask me anything if you have any questions. Brainiest plz!♥ Hope you make a 100%. Have a nice morning! -Amelia♥
the reason the velocity we measured was lower than the velocity we predicted is that some of the kinetic energy of the marble was converted to thermal energy during the collision. also, after the collision, air friction and bending in the pendulum rod converted more kinetic energy into thermal energy.
Answers
Yes, Actually most of the kinetic energy lost here to thermal energy and sound. and there's also some energy imparted to the rest of the apparatus through the forward component of force the pendulum exerts on its upper support. the fraction lost for this totally inelastic collision is strictly dependent on the mass ratio of ball pendulum.
What is Velocity ?
The vector quantity of velocity describes the speed at which an object's position is changing. It is determined by dividing an object's displacement over a specified period of time. The standard unit of velocity is metres per second (m/s), and it has both magnitude and direction.
The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal velocity.
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How are magnetic fields like vectors?
Answers
Answer:Magnetic fields from two sources add up as vectors at each point, so the strength of the field is not necessarily the sum of the strengths1. Magnetic fields are vectors, which means they have direction as well as size. Therefore, the sum of two magnetic fields is not simply the sum of their magnitudes2.
Explanation:
Jane (m=50kg) wants to save Tarzan (m= 80kg) who is standing in the middle of a ring of fire of 5.0 m diameter. Jane has a vine (conveniently attached to a branch right above Tarzan, at a height of 33 m above the ground. Jane holds onto the vine and climbs a tree, growing 16 m away from Tarzan, until she reaches a height of 5.3 m above the ground. She swings down and grabs Tarzan around his waist (1.0m above ground). If they let go of the vine when they reach their highest point, where will they land, relative to Tarzan's original position?
Answers
The height that will illustrate the distance will be d = 6.36m
How to calculate the height?Based on the information given, the length of the vine will be:
L = ✓(16² + 27.7)²
L = 32m
The velocity of Jane when she reaches position B will be:
V = ✓2gh
V = ✓(2 × 9.8 × 4.3)
V = 9.18m/s
We will apply the conversation of momentum. This will be:
50 × 9.18 = (50 + 80)V1
V1 = 3.53m/s
Therefore, the height that will illustrate the distance will be:
31.36² + d² = 32²
d² = 32² - 31.36²
d = 6.36m
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how can you Make different objects using blocks
Answers
Which are properties of a liquid? Check all that apply.
can change shape to conform to a container
has a rigid shape that does not change easily
contains free-moving ions and electrons
is compressed more easily than other states
has particles that can wiggle but cannot move
has particles that have some freedom to move
will expand to completely fill a closed container
Answers
Answer:
a and f
Explanation:
Options A and F explain the properties of a liquid. Liquid can change shape to conform to a container., It will expand to completely fill a closed container.
What is liquid?The liquid is a virtually incompressible fluid that adapts to its container's shape while maintaining a constant volume regardless of pressure. It is thus one of the four fundamental states of matter.
A liquid is made up of little vibrating matter particles called atoms that are bound together by intermolecular connections.
There is no defined shape (it assumes the shape of its container, but there is a certain volume. Although particles are free to travel over one another, they remain attracted to one another.
The properties of the liquid given in the options are as follows;
A.Liquid can change shape to conform to a container.
F.It will expand to completely fill a closed container.
Hence options A and F explain the properties of a liquid]
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Question 1
Describe the path light takes as it travels through air and into glass
Question 2
Explain the brightness of light using the wave model of light
Answers
Answer:
here is answer!
Explanation:
Question 1:
Light bends when it transitions from air to glass due to differences in refractive indices. It follows an incident path in air, refracts at the air-glass boundary, and continues through the glass as a transmitted ray. Total internal reflection may occur if the angle of incidence is large enough.
Question 2:
Brightness in the wave model of light is determined by the amplitude and intensity of the light waves. Higher amplitudes and intensities correspond to brighter light. When multiple light waves overlap, their amplitudes add up, resulting in increased brightness
The path light bends as it travels through air and into glass.
What is light?
The light is the ray form of energy obtained from the Sun.
The path of light will look like bended when it has crossed the interface of two medium.
As. the light ray falls on the surface of glass travelling through air, the ray appears to bend after refraction.
Thus, the path of light bends as it travels through air and into glass.
———————
Question 2 :
According to the wave theory of light, the energy of radiation depends only on the intensity or wave amplitude (brightness), not the frequency (what type of light; e.g red light or green light; visible light or gamma) According to the particle theory of light states the energy of radiation depend only on the frequency