Question 2 A light beam moving with velocity c along the x-axis approaches a space-ship moving with velcity 0.9c along the y-axis. The veloci of the light beam relative to the space ship is: B) less than c but greater than 0.9c <.9c C.

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A radio transmitter broadcasts with a power of 9.73 kW and a frequency of 91.5 MHz. At what distance will a circular dish antenna
with a diameter of 100 m intercept 1 photon/s. Give your answer in units of light-years (e.g. 0.450 for 0.450 light years)
Round your answer to 3 decimal places.
Add your answer
Question 2
A light beam moving with velocity c along the x-axis approaches a space-ship moving with velcity 0.9c along the y-axis. The velocity
of the light beam relative to the space ship is:
A >c
B) less than c but greater than 0.9c
c) <.9c
Transcribed Image Text:A radio transmitter broadcasts with a power of 9.73 kW and a frequency of 91.5 MHz. At what distance will a circular dish antenna with a diameter of 100 m intercept 1 photon/s. Give your answer in units of light-years (e.g. 0.450 for 0.450 light years) Round your answer to 3 decimal places. Add your answer Question 2 A light beam moving with velocity c along the x-axis approaches a space-ship moving with velcity 0.9c along the y-axis. The velocity of the light beam relative to the space ship is: A >c B) less than c but greater than 0.9c c) <.9c
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