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Author Question: When an electron drops from a higher energy level to a lower one, energy is emitted. In comparison, ... (Read 95 times)

Charlie

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on: Jul 29, 2018
When an electron drops from a higher energy level to a lower one, energy is emitted. In comparison, how much energy is required to reverse the process, going from the lower level to the higher level?
 
  A) less energy
  B) the same energy
  C) more energy

Question 2

A roller coaster car is on a track that forms a circular loop in the vertical plane. If the car is to just maintain contact with track at the top of the loop, what is the minimum value for its centripetal acceleration at this point?
 
  A) g downward
  B) 0.5g downward
  C) 2g downward
  D) g upward
  E) 2g upward


dlook33

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

Answer: B

Answer to Question 2

A


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