How many revolutions does it make during the time
A motor spins an 2 kg block around on an 80 cm arm at 200 rpm. The blosk is supported by a steel table after the motor stops. How long does the block take to come to rest? How many revolutions does it make during this time?
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A two stage rocket of mass 751kg traveling at speed 709m/s separates into a first stage of mass 236kg moving at zero speed and a final stage moving at a new speed - find this new speed right after separation.
(Because the angle is small, the back and forth swings do not cause any appreciable change in the length of the spring.) What is the unstretched length of the spring (i.e., without the apple attached)?
A sperical conductor has a total charge +Q, and radius R. 1) what is the shape of equipotential surfaces outside the conductor? 2) What is the shape of the equipotential surfaces inside the conductor?
A basketball is thrown horizontally with an initial speed of 4.50 m/s. A straight line drawn from the release point to the landing point makes an angle of 30.0 degrees with the horizontal. What was the release height?
A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +2.0. What is the magnification when the convex side is used as a mirror, the object remaining the same distance from the mirror?
What is the electric potential due to the two shells at the following distance from their common center: 8.00 cm
A BMW of mass 2.6 103 kg is traveling at 42 m/s. It approaches a 1.1 x 103 kg Volkswagen going 24 m/s in the same direction and strikes it in the rear. Neither driver applies the brakes. Neglect the relatively small frictional forces on the cars du
Two uniformly charged insulating rods are bent in a semicircular shape with radius r = 11.9 cm. If they are positioned so they form a circle but do not touch and have opposite charges of +8.19 µC and -8.19 µC, find the magnitude of the
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N acting due east and the other is 8.0 N acting 62 degrees north of west. What is the magnitude of the body's acceleration?
Determine its maximum angular displacement. (For large v, and/or small l, the small angle approximation may not be good enough here.)
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