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Author Question: When does a wave begin to interact with its bottom? a. When the bottom is deeper than the ... (Read 113 times)

ssal

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on: Aug 22, 2018

When does a wave begin to interact with its bottom?
  a. When the bottom is deeper than the wavelength
  b. When the bottom is shallower than the wavelength
  c. When the bottom is deeper than twice the wavelength
  d. When the bottom is shallower than twice the wavelength



Question 2

What maintains a forced wave?
  a. Wavelength
  b. Wind
  c. Disturbing force
  d. Restoring force



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amit

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Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: B
A wave is unable to feel the bottom if the depth is more than its wavelength. Information can be
found in the section The Behavior of Waves Is Influenced by the Depth of Water through Which They
Are Moving.



Answer to Question 2

ANS: C
Forced waves need the continual disturbing force to sustain them. An example of a forced wave is the
ocean tide which rely on the gravitational attraction of the sun and moon. Information can be found in
the section Waves Are Classified by Their Physical Characteristics.



ssal

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Reply 2 on: Aug 22, 2018
:D TYSM

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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