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frez [133]
3 years ago
8

Which of the following objects has kinetic energy?

Physics
2 answers:
kotykmax [81]3 years ago
5 0

Answer:

B

Explanation:

A body has kinetic energy that is moving

RoseWind [281]3 years ago
4 0
Answer:

B - A hockey puck gliding across the ice.

Explanation:

All the other 3 options possess potential energy, where the object stands, sits, or lays where it is. There is only one option that is an example of kinetic energy. And that option is B.
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Without friction, what is the mass of an ball accelerating at 1.8 m/sec2 to which an
Juli2301 [7.4K]

Answer:

<h2>23.33 kg </h2>

Explanation:

The mass of the object can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m  = \frac{42}{1.8}   = 23.3333... \\

We have the final answer as

<h3>23.33 kg</h3>

Hope this helps you

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kumpel [21]

Answer:

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v(0) = 0

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v(t) = 40(1 - e^(-t/10))

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The complete explanations of each of the sections contained in the question are in the files attached to this solution.

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