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What variables must be known to determine the observed frequency of a wave?
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What happens to light waves from a star as the star moves away from earth?
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This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?
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What variables must be known to determine the observed frequency of a wave?...
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