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A 10 g bullet traveling at 430m/s strikes a 13kg , 1.1-m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, causing the door to swing open.
1. What is the angular velocity of the door just after impact?
The applied force acts for 5.9 s, during which time the angular speed of the wheel increases from 0 to 12 rad/s. The applied force is then removed, and the wheel comes to rest in 65 s. Illustrate what is the frictional torque?
How many kilograms of water at 100.0 C could be converted to steam by the addition of 1.13 x 10^7 joules of thermal energy.
A nonconducting disk of radius a lies in the z = 0 plane with its center at the origin. The disk is uniformly charged and has a total charge Q. Find Ez on the z axis at the following positions.
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of the water while a large ball requires a lot of force
Diffraction plays an important role in which of the following phenomena.
An object, mass 2.96kg, moves in a horizontal circle with a radius of 3.8m. The object has the intial velocity of 32.6 m s-1. If the kinetic coefficient of friction between the object and the surface is 0.31, then number of completed revolutions (..
Assume a uniform mass distribution before and after. Icm for a solid sphere of uniform density is 2/5 mr2.
Find a relation between the variables that would guarantee that the block is initially slowing down.
What is direction of the resultant velocity
A coil is placed in a changing magnetic field and an emf is induced. What happens to induced emf if the rate of change of magnetic field quadruples.
A projectile is launched from a cannon at ground level at an angle of 62.0 degrees elevation and has a muzzle velocity of 481 m/s. Explain how many seconds after it is fired does it reach max height?
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