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A 4.80 kg disk is free to rotate about an axis during its center (+z); the plane of the disk is horizontal and the radius of the disk is 36.0cm. It initially rotates with an angular velocity of (18.0 rev/s, -z). Due to torques acting on the disk, the angular velocity is (6.00 rev/s, -z) after the disk has turned during 120 revolutions. Decide (a) the angular acceleration through this time; (b) the elapsed time; and (c) the linear velocity of a point on the edge of the disk after the disk turned during 60 revolutions.
A 0.658-nm photon collides with a stationary electron. After the collision, Find the momentum of the electron
A soldier is tasked with measuring the muzzle velocity of a new rifle. Knowing the principles of projectile motion, What muzzle velocity should the soldier report to his sergeant
An object is placed to the left of a lens, and a real image is formed to the right of the lens. How far from the lens is the object
A boxer punches another boxer with 2500N of force. The boxer's fist was traveling 10 m/s at the time of impact. What was the effective mass of the boxer throwing the punch
Some simple elemental superconductors (called type I) are perfect diamagnets, meaning that their internal magnetic field exactly cancels the applied field. What is the susceptibility of such superconductors
2.30×106 atoms are excited to an upper energy level at t=0s. At the end of 10.0ns, How many photons have been emitted
A stone is launched straight up by a slingshot. Its initial speed is 19.2 m/s and the stone is 1.40 m above the ground when launched. How high above the ground does the stone rise
The Earth produces an inwardly directed electric field of magnitude 150 V/m near its surface. (a) What is the potential of the Earth's surface relative to V = 0 at r = ∞? (b) If the potential of the Earth is chosen to be zero, what is the potential a..
A cubical box is 0.82m on a side. What is the volume of the box, as measured by this observer
two uniformly charged insulating rods are bent in a semicircular shape with radius r 11.9 cm. if they are positioned
In one inertial frame (the Home Frame), two events are observed to occur at the same place but ?t = 32 ns apart in time. What is the coordinate time interval between the events in the Other Frame
starting from its nest, an eagle flies at constant speed for 3.0 min due east, then 4.0 min due north. how long is the eagle in the air
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