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Author Question: Which light-emitting process is characterized by an afterglow? A) incandescence. B) ... (Read 40 times)

skymedlock

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on: Jul 29, 2018
Which light-emitting process is characterized by an afterglow?
 
  A) incandescence.
  B) fluorescence.
  C) phosphorescence.
  D) resonance.
  E) none of the above

Question 2

A proton moving eastward with a velocity of 5.0  103 m/s enters a magnetic field of 0.20 T pointing northward. What is the magnitude and direction of the force that acts on the proton?
 
  A) 0 N
  B) 1.6  10-16 N upwards
  C) 1.6  10-16 N downwards
  D) 1.1  10-16 N eastwards
  E) 4.4  10-16 N westwards


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ms_sulzle

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

Answer: C

Answer to Question 2

B


skymedlock

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

atrochim

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Reply 3 on: Yesterday
Excellent

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