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True or False: The acceleration of gravity experienced by objects located near to (and far from) from the earth depends upon the mass of the Earth.

A 50-kg platform diver hits the water below with a kinetic energy of 5000 Joules. The height (relative to the water) from which the diver dove was approximately ____ meters.

Two objects have the same size and shape, but one is much heavier than the other. When they are dropped simultaneously from a tower, they reach the ground at the same time, but the heavier one has a greater A)

Consider the following situation. A student takes a positively charged rubber rod and touches a metal sphere on an insulated stand. Draw the direction of electron flow. The charge on the metal sphere will end up ___.

A woman is pushing a box along the ground. She is exerting a horizontal force of 156 N on the box. The box has a mass of 84.0 kg, and has an opposing horizontal frictional force of 135 N. What is the coefficient of kinetic friction between the box and the ground?

The moment of  inertia of a disk about its axis is 0.70 kg · m2 . When a 2.0-kg weight is added to its rim, 0.40m from the axis, the total moment of inertia becomes

In a physics experiment, two equal-mass carts roll towards each other on a level, low-friction track. One cart rolls rightward at 2 m/s and the other cart rolls leftward at 1 m/s. After the carts collide, they couple (attach together) and roll together with a speed of _____________. Ignore resistive forces.

A platform diver weighs 500 N. She steps off a diving board that is elevated to a height of 10 meters above the water. The diver will possess ___ Joules of kinetic energy when she hits the water.

Two forces are applied to a doorknob, perpendicular to the door.  The first force is twice as large as the second force.  The ratio of the torque of the first to the torque of the second is

Mass differs from weight in that: