A spaceship, moving away from the Earth at a speed of 0.9c, shines a green laser at Earth. An observer on Earth would see the light arriving at a speed of: (4) O A. 0.1c but at a smaller frequency. O B. 0.1c but higher frequency Oc.c but at a shorter wavelength. O D.c but longer wavelength. O E. 0.1c and with an inverted frequency
A spaceship, moving away from the Earth at a speed of 0.9c, shines a green laser at Earth. An observer on Earth would see the light arriving at a speed of: (4) O A. 0.1c but at a smaller frequency. O B. 0.1c but higher frequency Oc.c but at a shorter wavelength. O D.c but longer wavelength. O E. 0.1c and with an inverted frequency
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A spaceship, moving away from the Earth at a speed of 0.9c, shines a green laser at Earth. An observer on Earth would see the light arriving at a speed of:
(4)
O A. 0.1c but at a smaller frequency.
OB. 0.1c but higher frequency
OC. c but at a shorter wavelength.
D. c but longer wavelength.
OE. 0.1c and with an inverted frequency
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