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Author Question: If the initial speed of a projectile is doubled. A) Its range will be increased by 1.41. B) Its ... (Read 48 times)

bobbysung

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on: Jul 29, 2018
If the initial speed of a projectile is doubled.
 
  A) Its range will be increased by 1.41.
  B) Its range will double.
  C) Its range will be decreased by a factor of two.
  D) Its range will quadruple.
  E) Its range will decrease by a factor of four.

Question 2

Light of a given wavelength is used to illuminate the surface of a metal, however, no photoelectrons are emitted. In order to cause electrons to be ejected from the surface of this metal you should
 
  A) use light of a longer wavelength.
  B) use light of a shorter wavelength.
  C) use light of the same wavelength but increase its intensity.
  D) use light of the same wavelength but decrease its intensity.


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abro1885

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

D

Answer to Question 2

B


bobbysung

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Reply 2 on: Jul 29, 2018
Excellent

TheNamesImani

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Reply 3 on: Yesterday
:D TYSM

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