Power is defined as ________.
a. the energy used times the time
b. the work done times the distance of motion
c. the energy used divided by the work
d. the rate of converting energy
e. the ability to do work
Question 2
A space station of diameter 80 m is turning about its axis at a constant rate. If the acceleration of the outer rim of the station is 2.5 m/s2, what is the period of revolution of the space station?
a. 22 s
b. 19 s
c. 25 s
d. 28 s
e. 40 s