A ball is projected horizontally from the top of a building. One second later, another ball is projected horizontally from the same point with the same velocity.(a) At what point in the motion will the balls be closest to each other?They stay equidistant from each other throughout the motion. the instant the first ball hits the ground the instant the second ball is projected one second after the second ball is projected

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?