Which electromagnetic waves have the highest energy?
A) gamma rays
B) light waves
C) radio waves
D) X-rays

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Patricia is trying to compare the average rainfall of new york to that of arizona. a comparison between these two states for the months of july through september would best be measured in

How do you know how many valence electrons an atom has?