Atriangular plate with height 6 ft and a base of 8 ft is submerged vertically in water so that the top is 4 ft below the surface. express the hydrostatic force against one side of the plate as an integral and evaluate it. (recall that the weight density of water is 62.5 lb/ft3.)

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

What causes the formation of ocean currents?

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?