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 The block shown moves with constant velocity on a horizontal surface. Two of the forces on it are shown. A frictional force exerted by the surface is the only other horizontal force on the block. The frictional force is:

During the Modernism eras the Beatles revolutionized the concept of albums and established them as an important form of musical expression.

A boy and a girl are riding on a merry-go-round which is turning at a constant rate.  The boy is near the outer edge, and the girl is closer to the center.  Who has the greater angular speed?

For a biological sample in a 1.0-m radius centrifuge to have a centripetal acceleration of 25 g its speed must be:

The end of the Commonwealth of England & the return of Monarchy during English Restoration occurred in which era?

Which of the following bodies has the largest kinetic energy?

50-N object was lifted 2.0 m vertically and is being held there.  How much work is being done in holding the box in this position?

Using 1000. J of work, a small object is lifted from the ground floor to the third floor of a tall building in 20.0 seconds. What power was required in this task?

Two equal forces are applied to a door at the doorknob.  The first force is applied perpendicular to the door; the second force is applied at 30° to the plane of the door.  Which force exerts the greater torque?

The inertia of a body tends to cause the body to: