Answer:
Redshift, or lower power
Explanation:
doppler effect
waves get stretched when you are moving away from something, and squished when you are moving towards it. Imagine you have a long, bent wire. if you stretch out the wire, the wavelength becomes longer. This also applies to sound.
Which is a drawback of solar energy?
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A. It depends on the climate.
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B. It is not a renewable resource.
C. It is difficult to use for electricity.
D. It can be a source of water pollution.
Answer : 12.7 cm = 127. mm