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1. A string is wound around a metal wheel that is free to spin on a frictionless pivot. A hanging mass is connected to the other end of the string. The wheel is given a twist causing it to start rotating at 2.5 rad/s in the counterclockwise direction. All known quantities are shown in the figure.
A. What is the initial velocity of the hanging mass?
B. Estimate the acceleration of the disk?
C. Approximately when does the disk stop? Explain
D. Estimate the velocity of the mass at t=2s.
E. Estimate the acceleration of the mass at t=2s.
Two small beads having positive charges 18q and q are fixed at the opposite ends of a horizontal insulating rod, extending from the origin (the location of the larger charge) to the point x = d. As, a third small charged bead is free to slide on t..
A 50g ball of clay traveling at speed v0 hits and sticks to a 1.0kg block sitting at rest on a frictionless surface. what os the speed of the brick after the collision
M1 is five times more massive than M2. One force acts on the hanging mass, but the net force acts on both masses. Once you have the acceleration, you can compute the distance.
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Capacitance and resistance network.
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A defibrillator consists of a 15.3-µF capacitor that is charged to 8.4 kV. What is the average power delivered to the tissues
Two forces parallel to the x axis do 16.8 J of work on a small tray while moving it 17.5 m in the x direction across a gym floor. What is the other force
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