a 0.05 kg tennis ball moves at a velocity of 11.5 m/s . What is the kinetic energy of the ball?a 0.05 kg tennis ball moves at a velocity of 11.5 m/s . What is the kinetic energy of the ball?

What causes the formation of ocean currents?

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.

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?