Light waves
A) Do not require a medium
B) can not travel through a vacuum
C) are...
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When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m
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Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?
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Explain earth's motion, using the terms "precession" and "rotation" in your answer.
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