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Author Question: A lump of uranium has a mass of 2.0 kg, and begins at rest. One half of the lump's mass is going to ... (Read 94 times)

geoffrey

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on: Jul 28, 2018
A lump of uranium has a mass of 2.0 kg, and begins at rest. One half of the lump's mass is going to be totally converted into kinetic energy of the other half. After this is done, how fast is the remaining half going?
 a. 1.0c
  c. 0.94c
  b. 0.60c
  d. 0.87c

Question 2

A satellite is powered by a small nuclear generator that puts out 20 W. How much matter is converted into energy over the 10 year life span of the generator?
 a. 70 g
  c. 53 kg
  b. 53 g
  d. 53 g


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ciecieme

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


geoffrey

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

isabelt_18

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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