A pulsar is a collapsed, rotating star that sends out a narrow beam of radiation, like the light from a lighthouse. With each revolution, we see a brief, intense pulse of radiation from the pulsar. Suppose a pulsar is receding directly away from Earth with a speed of 0.810c, and the starship Endeavor is sent out toward the pulsar with a speed of 0.940c relative to Earth.
If an observer on Earth finds that 152 pulses are emitted by the pulsar every second, at what rate does an observer on the Endeavor see pulses emitted?
i have gotten 858 & 864 but they are wrong
If an observer on Earth finds that 152 pulses are emitted by the pulsar every second, at what rate does an observer on the Endeavor see pulses emitted?
i have gotten 858 & 864 but they are wrong
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T2 =T1/(1-v^2/c^2)
T2 = 1 (second relative to observer) / (1- .940^2) (speed is given relative to light, so /c^2 is not required)
= 8.591
152*8.591 = 1305 pulses.
the starship is an observer of the pulsar so the speed of the radiation is not taken into account. (im also very new to this topic so i could be completely wrong and retarded.)
T2 = 1 (second relative to observer) / (1- .940^2) (speed is given relative to light, so /c^2 is not required)
= 8.591
152*8.591 = 1305 pulses.
the starship is an observer of the pulsar so the speed of the radiation is not taken into account. (im also very new to this topic so i could be completely wrong and retarded.)