Awater hose is used to fill a large cylindrical storage tank of diameter d and height 2d. the hose shoots the water at 45° above the horizontal from the same level as the base of the tank and is a distance 6d away (see fig. below). for what range of launch speeds (vo) will the water enter the tank? ignore air resistance, and express your answer in terms of d and g.

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.