What is the magnitude of the momentum of a 0.50 kg ball moving in a straight line at 5.0 m/s?
a. 0.1 kg • m/s
b. 2.5 kg • m/s
c. 6.3 kg • m/s
d. 10 kg • m/s

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.

Which system of units is used by only a small number of countries in the world, including the u.s.