Chemistry, 23.09.2021 14:00 jordan2875
2. Theo observes a star. He observes it at 9:00 P. M. on September 9. When will the star be in the
same position, at the same exact time of night again?
A. one day later
B. one week later
C. one month later
D. one year later
Answers: 3
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Which one of the following gases is not an important component of soil?
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Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
Answers: 1
2. Theo observes a star. He observes it at 9:00 P. M. on September 9. When will the star be in the...
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