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What kind of energy is a type of potential energy? Chemical Heat Kinetic Electrical If the...

What kind of energy is a type of potential energy?

Chemical

Heat

Kinetic

Electrical

If the sidewalk and cart dent one another too much, they accelerate toward one another.

True

False

Consider the earth spinning from west to east on its axis. It is slowing down in its rotation due to friction with the air. Using the right hand rule, in what direction is the frictional torque?

S pole to N pole

N pole to S pole

Counterclockwise along the equator

Clockwise along the equator

Suppose you are driving your car down the highway and rounding a curve at constant speed. Which of the following are true?

The car’s momentum is constant but not its kinetic energy.

The car’s kinetic energy is constant but not its momentum.

Both the car’s kinetic energy and momentum are constant.

Neither the car’s kinetic energy nor momentum are constant.
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Answer #1

1)  What kind of energy is a type of potential energy?

ANSWER: Electrical

2) If the sidewalk and cart dent one another too much, they accelerate toward one another.

ANSWER : FALSE

3) Consider the earth spinning from west to east on its axis. It is slowing down in its rotation due to friction with the air. Using the right hand rule, in what direction is the frictional torque?

ANSWER: N pole to S pole

4)  Suppose you are driving your car down the highway and rounding a curve at constant speed. Which of the following are true?

ANSWER : Both the car’s kinetic energy and momentum are constant.
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