Two identical point masses, each of mass M, always remain separated by a distance of 2R. A third mass m is placed a distance x along the perpendicular bisector of the two original masses. Show that the gravitational force on the third mass (m) is directed inward along the perpendicular bisector and has a magnitude of

Which fators influence ocean currents

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology

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?