Electromagnetic energy travels through space in the form of what A. electric charges

B. shape

C. waves

D. lower

E. higher

F. chemical

G. electrical

H. nuclear

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Most of the volume of an atom is occupied by the

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.