Author: Anonymous

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:

Actigraphy measures movements and can also measure some basic sleep parameters such as sat and heart rate. The device can be worn for an extended period of time without the patient having to be at the lab. The data can then be downloaded to a computer and analyzed. 

A bicycle wheel rotates uniformly through 2.0 revolutions in 4.0 s.  What is the average angular speed of the wheel?

A 2-kg object is moving at 3m/s. A 4-N force is applied in the direction of motion and then removed after the object has traveled an additional 5m. The work done by this force is:

If a constant net torque is applied to an object, that object will

A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object.  What is the object’s change of velocity?

If you chart that a patient is supine they are.

A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bowling ball.  The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east.  Which object experiences the greater magnitude impulse during the collision?