The theory that heat comes from the constant motion of particles is called the
a)kinetic theory.
b)molecular theory.
c)kinetic-molecular theory.
d)potential-molecular theory.

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.

Which situation will produce the greatest change of momentum

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?