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?

force tends to be low and long diustance masses are high

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

can somebody give me the answer so i can graduate