Physics, 17.12.2019 01:31 meganaandrewsat

An astronomer is shooting a green laser with a wavelength of 540 nm at an asteroid. the light reflects off the asteroid and is reading as 538.9 nm.
a. is the asteroid moving toward from the astronomer? how can you tell?
b. what is the speed of the asteroid?

An astronomer is shooting a green laser with a wavelength of 540 nm at an asteroid. the light reflec

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An astronomer is shooting a green laser with a wavelength of 540 nm at an asteroid. the light reflec...