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A rifle of mass M is initially at rest but free to recoil. It fires a bullet of mass m and velocityv (relative to the ground). After firing, the velocity of the rifle (relative to the ground) is:

Michelangelo completes the sculpture David, Martin Luther launches the Protestant Reformation, Elizabeth I is crowned queen in England, and Shakespeare’s Hamlet is produced. These events occurred during the Romantic era.

The most important music of the early Renaissance was composed for use by the church.

What is the angular momentum of a 2.8-kg uniform cylindrical grinding wheel of radius 18 cm when rotating at 1500 rpm?

 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?