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Author Question: A 6.0-J pulse of light from a laser has what momentum? a. Light does not have momentum because it ... (Read 15 times)

TFauchery

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on: Jul 28, 2018
A 6.0-J pulse of light from a laser has what momentum?
 a. Light does not have momentum because it doesn't have mass.
  b. 3.0  109 kgm/s
  c. 6.7  109 kgm/s
  d. 2.0  108 kgm/s

Question 2

Two vibrating tuning forks, held side by side, will create a beat frequency of what value if the individual frequencies of the two forks are 321 Hz and 326 Hz, respectively?
 a. 323.5 Hz
  c. 5 Hz
  b. 647 Hz
  d. 2.5 Hz


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potomatos

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

D

Answer to Question 2

C


TFauchery

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Reply 2 on: Jul 28, 2018
Gracias!

gcook

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Reply 3 on: Yesterday
Wow, this really help

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