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Author Question: What is the energy of a photon with a frequency of 5.2 1014 Hz? a. 3.4 10-19 J b. 1.3 10-20 J ... (Read 98 times)

oliviahorn72

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on: Jul 28, 2018
What is the energy of a photon with a frequency of 5.2  1014 Hz?
 a. 3.4  10-19 J
  b. 1.3  10-20 J
  c. 0.8  10-20 J
  d. 0.3  10-21 J

Question 2

Two identical silver spheres of mass m and radius r are placed a distance R (sphere 1) and 2R (sphere 2) from the sun respectively. The ratio of the pressure of solar radiation on sphere 2 to that on sphere 1 is
 a. 0.25.
  b. 0.50.
  c. 1.0.
  d. 2.0.
  e. 4.0.


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macmac

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

a

Answer to Question 2

a


oliviahorn72

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Reply 2 on: Jul 28, 2018
Excellent

shewald78

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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