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Author Question: When a hydrogen bomb explodes, hydrogen fuses to form helium. According to Einstein's mass-energy ... (Read 116 times)

Melani1276

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on: Jul 29, 2018
When a hydrogen bomb explodes, hydrogen fuses to form helium. According to Einstein's mass-energy equivalence that is, according to E=mc2, does this result in an change in the total mass of the material?
 
  A) Yes, the mass increases, but by such a small amount that it would be impossible to measure it.
  B) Yes, the mass increases, and by a measurable amount.
  C) Yes, the mass decreases, and by a measurable amount.
  D) Yes, the mass decreases, but by such a small amount that it would be impossible to measure it.
  E) No, the mass remains exactly the same.

Question 2

Which of the following describes an object that is moving with an unchanging speed but a changing velocity?
 
  A) A car slowing down while moving along a straight line.
  B) A car rounding a curve at a steady 80 km/hr.
  C) A car moving along a straight horizontal (level) line at a steady 80 km/hr.
  D) A car moving up a straight hill a hill whose slope is unchanging at a steady 80 km/hr, when the car is midway up the hill.
  E) Both answers C and D are correct.


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juicepod

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


Melani1276

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

bblaney

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Reply 3 on: Yesterday
Wow, this really help

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