At which the pulses from ships c and a reach ship b

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Reference no: EM13338770

Three spaceships, A, B and C, pass the Earth, E, at a speed of v= 4c/ 5, where c is the speed of light. The ships are 9x10^11

meters apart in the rest frame of the ships. When spaceship B is passing Earth, spaceships A and C emit light pulses simultaneously according to observers in Earths frame of reference. In Earth's frame, set the time to zero when these

events occur; set the time in the spaceships' frame to zero at the moment when spaceship B is passing Earth.

A B C

(a) According to observers in Earth's frame, how far apart are the ships?

(b) According to observers in Earth's frame, at what time do the pulses arrive at earth?

(d) Draw a plot of ct vs x showing the positions of the three spaceships and of the light pulses vs. time, in Earth's frame. Find the times, according to the Earth frame, at which the pulses from ships C and A reach ship B.

Reference no: EM13338770

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