What is the term for the force exerted on an object by another object? a: action force b: collision force c: net force d: reaction force

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little