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Deffense [45]
3 years ago
10

For a constant force, when the surface area is tripled the

Chemistry
1 answer:
IceJOKER [234]3 years ago
5 0

I think it is c

because it say tripled

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The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.
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Answer:

It will take 6.6 hours for 75% of the lead to decay.

Explanation:

The radioactive decay follows first order rate law

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time=\frac{1}{k}(ln[\frac{A_{0}}{A_{t}}]

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anyanavicka [17]

Answer:

FALSE!!! Thermal energy can be transformed to heat.

Explanation:

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Answer:

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