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NeX [460]
2 years ago
8

The half-life for P-32 is 14.3 days. What fraction of a sample of P-32 will be left after 42.9 days?

Physics
1 answer:
mafiozo [28]2 years ago
6 0

Answer: At one half-life (14.3 days) 230 mg of the P-32 would remain. at two half-lives (14.3 + 14.3 or 28.6 days) 115 mg of the P-32 would remain. at three half-lives (14.3 + 14.3 + 14.3 or 42.9 days) 57.5 mg of the P-32 would remain.

Explanation:

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Answer:

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Explanation:

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W =F\ \times \ d = \frac{mv}{t} \times \ d\\\\W = \frac{800 \ \times \ 35.76  }{3.74} \times \ 68.58\\\\W = 524,582 \ J

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3 years ago
A large raindrop-the type that lands with a definite splat-has a mass of 0.0014 g and hits your roof at a speed of 8.1 m/s. a. W
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Answer

given,

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speed of the drop, u = 8.1 m/s

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Answer:

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