The weight of a piston of area A creates a force F on a large tank of water of the same area A. A small diameter tube protrudes from the side of the tank and bends upwards, discharging a jet at a speed Vfrom a nozzle located at height H relative to the piston-water interface.

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?