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Author Question: The wavelength of a light beam is doubled. Which one of the following is correct for the momentum of ... (Read 33 times)

mspears3

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on: Jul 29, 2018
The wavelength of a light beam is doubled. Which one of the following is correct for the momentum of photons for that light beam?
 
  A) It is halved.
  B) It stays the same.
  C) It is doubled.
  D) It is reduced by one-fourth
  E) It is quadrupled.

Question 2

A projectile is fired from ground level with an initial speed of 55.6 m/s at an angle of 41.2 above the horizontal. (a) Determine the time necessary for the projectile to reach its maximum height.
 
  (b) Determine the maximum height reached by the projectile. (c) Determine the horizontal and vertical components of the velocity vector at the maximum height. (d) Determine the horizontal and vertical components of the acceleration vector at the maximum height.


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angrybirds13579

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

A

Answer to Question 2

(a) 3.73 s
(b) 68.3 m
(c) vhorizonta = 41.8 m/s, vvertical = 0
(d) vhorizonta = 0, vvertical = -9.8 m/s2


mspears3

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Reply 2 on: Jul 29, 2018
:D TYSM

amcvicar

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Reply 3 on: Yesterday
Excellent

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