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SapphireSmoke SapphireSmoke
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6 years ago

What occurs when waves hit an obstacle straight on?
  a. wave refraction
  b. wave diffraction
  c. wave reflection
  d. wave dispersion
  e. wave interference

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joanneannajoanneanna
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6 years ago
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You make an excellent tutor!
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This helped my grade so much Perfect
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