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irina1246 [14]
3 years ago
10

What is the name of the person that help people at the gym?

Physics
2 answers:
tankabanditka [31]3 years ago
7 0

Question: what is the name of the person that help people at the gym?

Answer: a trainer

Explanation: they go around and help people with there exercise and take care of the equipment and tell you how to get in shape

question answered by

(jacemorris04)

frozen [14]3 years ago
5 0

That is called a physical trainer or a fitness coach. Hope I helped!

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Answer:

See explanation

Explanation:

We have a mass m revolving around an axis with an angular speed \omega, the distance from the axis is r. We are given:

\omega = 10 [rad/s]\\r=0.5 [m]\\m=13[Kg]

and also the formula which states that the kinetic rotational energy of a body is:

K =\frac{1}{2}I\omega^2.

Now we use the kinetic energy formula

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After replacing in the previous equation we get:

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now we have the following:

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therefore:

mr^2=I

then the moment of inertia will be:

I = 13*(0.5)^2=3.25 [Kg*m^2]

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