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Sliva [168]
3 years ago
10

Helpppp pleaseeeee helppp fast

Physics
1 answer:
wariber [46]3 years ago
5 0
I believe the answer is B
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Nuclear waste disposal is one of the largest issues with nuclear power. Cesium-137 is one of the high level waste products in an
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Answer:

A sample of 5.2 mg  decays to .65 mg or to 1/8 of its original amount.

1/8 = 1/2 * 1/2 * 1/2 or 3 half-lives.

3 * 30.07 = 90 yrs for 5.2 mg to decay to .65 mg

You can get these other numbers similarly:

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3 years ago
A 300 g bird is flying along at 6.0 m/s and sees a 10 g insect heading straight towards it with a speed of 30 m/s. The bird open
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Answer:

(a): The bird speed after swallowing the insect is V= 4.83 m/s

(b): The impulse on the bird is I= 0.3 kg m/s

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Explanation:

ma= 0.3 kg

va= 6 m/s

mb= 0.01kg

vb= 30 m/s

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I= mb * vb

I= 0.3 kg m/s  (b)

F*t= I

F= I/t

F= 20 N (c)

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Why are some isotopes used as tracers?
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