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dmitriy555 [2]
3 years ago
15

Help!!! What is the kinetic energy of a 0.1kg baseball thrown at 20m/s? With work please

Physics
1 answer:
True [87]3 years ago
4 0

Kinetic Energy = 1/2 * mass * velocity^2

Mass = 0.1 kg

Velocity = 20 m/s

Kinetic energy = 1/2 * 0.1 * 20^2

Kinetic energy = 1/2 * 0.1 * 400

Kinetic energy = 20 J

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best explanation of this is sentence B

Explanation:

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When the values ​​are substituted the power is quite high 2.5 KW, but the medium surrounding the box also emits radiation

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As the two powers are similar and the box can absorbed, since it has the ability to emit and absorb radiation, as the medium is also close of the temperature of the box, the amount emitted is very similar to that absorbed, so the net change in energy is very small.

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Consequently, the best explanation of this is sentence B

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