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astronomy homework

3. Your best friend travels to Caprica to see if she/he would like to live there. Your
best friend signals you with a green light beacon to let you know everything is
going well. If Caprica is moving away from Earth at 108 m/s, what wavelength
would the light have when it reaches you on Earth? (The wavelength, λ, of green
light is 5.1 x 10-7 m.) Show your work. (15 pts)
a. What color would the wavelength of light you receive correspond to? (3
pts)

4. What is the wavelength of maximum intensity (λmax) for thermal radiation from
your body? Show your work. (10 pts)
a. What frequency does this wavelength correspond to? Show your work. (8
pts)

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