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colochaortiz20p7cajw
24.03.2021 •
Physics
HELP PLEASE!✋
If the half-life of a decaying isotope is 10 years, which statement is true after
8 years?
A. There are more parent nuclei than daughter nuclei in a sample.
B. The numbers of parent nuclei and daughter nuclei in a sample are
equal.
C. There are more daughter nuclei than parent nuclei in a sample.
O D. The relative numbers of nuclei cannot be determined until 10
years have passed.
WILL MARK BRANLIEST
Solved
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Ответ:
Its A
Explanation:
A P E X
Ответ:
Explanation:
Elastic collisions conserve momentum and kinetic energy.
For identical masses, the momentums (directly proportional to velocity) will simply be exchanged.
The mass with initial momentum 3m kg•m/s will have final momentum -7m kg•m/s.
The mass with initial momentum -7m kg•m/s will have final momentum 3m kg•m/s.
Draw your charts accordingly.