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a hoop of mass M=2 kg and radius R=0.4 m rolls without slipping down a hill. The lack of slipping means that when the center of mas of the hoop has speed V, the tangential speed of the hoop relative to the center of mass is equal to Vcm,since in that case the instantaneous speed is zero for the part of the hoop that is in contact with the ground (v-v=0). The initial speed of the hoop is Vinitial =2m/s, and the hill has a height of H=4.1 m. what is the speed Vfinal at the bottom of the hill?
A 1000-turn coil of wire that is 2.4cm in diameter is in a magnetic field that drops from 0.12T to 0T in 11ms. What is the emf of the coil
A beam of quasimonochromatic light having an irradiance of 500 watts per square meter is incident in air, Determine the reflectance and transmittance
A hunter aims directly at the target (on the same level) 115 m away. If the bullet leaves the gun at a speed of 205 m/s, by how much will it miss target.
Find the direction of the net electrical force electrons will exert on the proton. Enter your answer as an angle measured relative to the line connecting the proton and the right electron with counterclockwise being positive.
A rod has a linear density ? = 3x, where x is the distance along the rod, What is the coordinate of the center of mass of the rod
An electron is released from rest at x=0 in a region where the electric field is . Find the speed of the electron when x = 2.5 cm
asssume that in a particular vacuum tube the potential of the anode is 340 V higher than that of the cathode. If an electron leaves the surface of the cathode with zero initial speed, what is its speed when it strikes the anode.
an object is at a distance d to the left of a flath screen. A converging lens with focal length f
The upward normal force exerted by the floor is 610 N on an elevator passenger who weighs 660 N. What is the reaction force to weight of the passenger
An electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
A blue ball is thrown upward with an initial speed of 21.6 m/s, from a height of 0.9 meters above the ground. 2.6 seconds after the blue ball is thrown, What is the maximum height the blue ball reaches
A golfer tees off from the top of a rise, giving the golf ball an initial velocity of 43 m/s at an angle of 30o above the horizontal. How high is the rise above the fairway
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