A sprinkler mounted on the ground sends out a jet of water at a 35 degree angle to the horizontal. The water leaves the nozzle at a speed of 12 m/s . How far does the water travel before it hits the ground?
Express your answer to two significant figures and include the appropriate units.

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?