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3 years ago

As the kinetic energy of an object increases, so does the _________ energy produced. A) heat B) light C) atomic D) potential

Physics

2 answers:

Musya8 [376]3 years ago

7 0

a is the answer

bc i took the test

IrinaK [193]3 years ago

5 0

Answer:

A) heat

Explanation:

As kinetic energy increases, so does the heat energy produced. The faster the molecules move, the more heat that is generated.

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given the data 11.4, 11.3, 11.2 and 11.1 cm determine the average and its standard deviation using equation

Ostrovityanka [42]

Answer:

Average $\bar{x}$ = 11.25 cm

standard deviation = 0.129 cm

Explanation:

The data provided in the question is:

x₁ = 11.4 cm

x₂ = 11.3 cm

x₃ = 11.2 cm

x₄ = 11.1 cm

total number of data points, N = 4

Now, the average is calculated as:

Average $\bar{x}$ = $\frac{sum\ of\ all\ the\ data\ points }{number\ of\ data\ points}$

substituting the values in the above formula we get,

Average $\bar{x}$ = $\frac{11.4cm+11.3cm+11.2cm+11.1cm }{4}$

Average $\bar{x}$ = 11.25 cm

Now the standard deviation is calculated as:

standard deviation = $\sqrt\frac{\sum_{i=1}^{4} \left(x_i - \bar x \right )^2}{N-1}$

substituting the values in the above equation we get,

standard deviation = $\sqrt\frac{\left(11.4 - 11.25 \right )^2 + \left(11.3 - 11.25 \right )^2 + \left(11.2 - 11.25 \right )^2 + \left(11.1 - 11.25 \right )^2}{3}$

standard deviation = 0.129 cm

5 0

3 years ago

A man drops a baseball off of the top of the Empire State Building. If the action force is the Earth pulling on the ball, then w

stepladder [879]

Reaction force is the ball pulling up on the Earth. Every action has an equal and opposite reaction, so when the Earth pulls on the baseball, the baseball pulls back on the Earth with equal force

7 0

3 years ago

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Why it is easier to lift a small stone but harder to lift heavy one on the surface of Earth

Nesterboy [21]

Answer:

since small stone has less mass so the gravitational pull of the earth is lesser in case of this but this is not for the bigger stone as the gravitational pull of the earth is greater...

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3 years ago

A negative slope on the velocity vs. time graph indicates that the object is not

Svetlanka [38]

Answer: False, I think

Explanation:

Well it depends. Its hard to say without a function of the graph. Given a velocity graph, the first derivative is the acceleration.

Negative slope on a velocity graph means you are going in the negative direction. And over time, your velocity per unit of time is also decreasing. That means we are accelerating in the negative direction

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3 years ago

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States of Matter:

GREYUIT [131]

Solid because the particles vibrate in place

5 0

3 years ago