An astronaut wishes to visit the Andromeda galaxy, making a one-way trip that will take 31.7 years in the space-ship's frame of reference. Assume the galaxy is 2.00 million light years away and his speed is constant.
Required:
a. How fast must he travel relative to Earth?
b. What will be the kinetic energy of his spacecraft, which has a mass of 1.00 x 10^6 kg?
c. What is teh cost of this energy if it is purchased at a typical consumer price for electric energy, 13.0 cents per kWh?
Answers: 1
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An astronaut wishes to visit the Andromeda galaxy, making a one-way trip that will take 31.7 years i...
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