88. A spaceship heads away from Earth at 0.20c. The ship beams 450-nm light toward Earth. The light strikes a mirror on Earth and is reflected back to the ship. What is the wavelength of light received by the ship? Hint: Find the wavelength received at Earth, and then consider that the mirror effectively retransmits light of that wavelength.
88. A spaceship heads away from Earth at 0.20c. The ship beams 450-nm light toward Earth. The light strikes a mirror on Earth and is reflected back to the ship. What is the wavelength of light received by the ship? Hint: Find the wavelength received at Earth, and then consider that the mirror effectively retransmits light of that wavelength.
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Transcribed Image Text:88. A spaceship heads away from Earth at 0.20c. The ship
beams 450-nm light toward Earth. The light strikes a mirror on Earth and
is reflected back to the ship. What is the wavelength of light received by the
ship? Hint: Find the wavelength received at Earth, and then consider that
the mirror effectively retransmits light of that wavelength.
Transcribed Image Text:Do Problem 20-92.
Suppose the redshift is z = 5.2.
(speed of the galaxy in terms of c = v/c = )
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