A projectile of mass m is fired straight up from an initial height zero with an initial speed v0 . The projectile rises to a maximum height of hmax and falls straight back down to a final height hf (hf > 0). The maximum height hmax is small compared to the radius of the Earth, so you can assume that g is constant. What is the total work done by the force of gravity on the mass during the flight

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

Which composition of water moves to begin a deepwater current?