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madam [21]
3 years ago
10

How old is a radioactive specimen if the half-life is 5,000 years and only 12.5% of the original material is remaining? 20,000 y

ears 15,000 years 10,000 years 5,000 years
Physics
1 answer:
kati45 [8]3 years ago
7 0

Answer:

400

Explanation:

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A force of 10N is applied by a boy while lifting a 20,000g mass. How much does it accelerate by?
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0.5 m/s^{2}

Explanation:

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a = \frac{1}{2}

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Out of the following given choices;

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