Choose the true statement concerning the mass of subatomic particles. a.electrons are more massive than protons. b.electrons are more massive than neutrons. c.protons and neutrons have about the same mass. d.all subatomic particles have about the same mass.

Which statement correctly describes the relationship between frequency and wavelength?

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.