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A cylinder and pulley turn without friction about stationary horizontal axles that pass through their centers. A light rope is wrapped around the cylinder, passes over the pulley, and has a 4.00 kg box suspended from its free end. There is no slipping between the rope and the pulley surface. The uniform cylinder has mass 5.00 kg and radius 40.0 cm. The pulley is a uniform disk with mass 2.00 kg and radius 20.0 cm. The box is released from rest and descends as the rope unwraps from the cylinder. Find the speed of the box when it has fallen 1.50m.
The elementary particle called a muon is unstable and decays after 2.20 ?s, What lifetime do you observe for the muon
Three vectors have the same magnitude of 12 units. They make angles of ?, 2 times ? and 3 times ? with respect to the x axis, where ? = 16 o. What is the magnitude of their vector sum
find the equivalent capacitance of a 3.90 microf capacitor and an 10.50 microf capacitor when they are connected as
A football player (m=115g) is sitting on the ground. A playerkicks the ball with a force of 36 N. The force acts over a distanceof 25 cm and is along the direction of motion of the soccerball. What is the speed of the ball after being kicked?
An electron close to a large, flat sheet of charge is repelled from the sheet with a 2.2pN force. Find the surface charge density on the sheet
Is kinetic energy of a system conserved when two objects collide and stick together? What about the momentum of the system? What kind of collision is this (elastic or inelastic )?
A gun shoots bullets that leave the muzzle with a speed of 205m/s. If a bullet is to hit a target 151m away at the level of the muzzle, the gun must be aimed at a point above target.
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An electron is accelerated through 2250 V from rest and then enters a region where there is a uniform 2.00 T magnetic field. What are the maximum and minimum magnitudes of the magnetic force acting on this electron
A converging lens of focal length 7.830 cm is 19.8 cm to the left of a diverging lens of focal length -6.16 cm. Find the location of the coins final image
A lead block is suspended from the underside of a 0.8 kg block of wood of density of 720 kg/m3. determine the mass of the lead block
The electric field everywhere on the surface of a thin spherical shell of radius 0.780m is measured to be equal to 940 N/C and points radially toward the center of the sphere.
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