A ball is thrown at a launching angle of 52 o above the horizontal from one meter above the ground, with a velocity of 18 m/s. a. What is the highest barrier the ball can clear?
b. How far will the ball go before being caught one meter above the ground?
c. How much time does it take for the ball to get to the catcher?

Which best represents the law of conservation of mass ?

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?