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Observing a Spaceship from Earth

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A spaceship moving past the earth with a speed of 0.8 c blasts the earth with pulsed laser photons every 10 seconds. For the observers on earth who see the flashes, what is the time interval they measure?

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A spaceship moving past the earth with a speed of 0.8 c blasts the earth with pulsed laser photons every 10 seconds. For the observers on earth who see the flashes, what is the time interval they measure?

Answer:
[ Explanation to the problem:
The spaceship is moving away from the earth and ...

Solution Summary

Word document to address this question of relativity in the context of a spaceship is provided in the solution.

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See Also This Related BrainMass Solution

Relativistic Physics Understanding

A spaceship travels with a speed of 0.6 c as
it passes by the Earth on its way to a distant
star, as shown in the diagram below. The
pilot of the spaceship measures the length of
the moving ship as 10 m.
Determine its length as measured by a per-
son on Earth. Answer in units of m.

The pilot of the spaceship observes that the
spaceship travels for 2 years.
Determine how much time has passed ac-
cording to a person on Earth. Answer in units
of years.

Some time after passing the Earth, the pilot
shoots a laser pulse backward at a speed of
3 *10 ^8 m/s with respect to the spaceship.
Determine the speed of the laser pulse as
measured by a person on Earth.
Answer in units of m/s.

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