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anyanavicka [17]
3 years ago
15

If a baseball's velocity is increased to four times its original velocity, by what factor does its kinetic energy increase

Physics
1 answer:
jeyben [28]3 years ago
8 0

Answer:

16 times

Explanation:

Original

KE(i)  = 1/2mv²

After increasing

KE(f) = 1/2m(4v)²

KE(f) = 8mv²

KE(f)/KE(i) = 8 x 2 = 16

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Answer:

\huge\boxed{50g}

Definition:

Half-life- The time taken for half of the radioactive isotopes to decay.

Explanation:

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Since a half-life is the time taken for half of the isotopes to decay, we can simply divide the initial mass of 100 grams by 2; this gives us 50 grams.

1) Divide 100g by 2.

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Explanation:

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Phase change requires...
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