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An automatic external defibrillator delivers 125J of energy at a voltage of 1050V. What is the capacitance of this device?
You are given a charged metal sphere mounted to an insulating post. You have two other identical but uncharged spheres on their own similar insulating posts. Explain the procedure to give the two uncharged spheres each a roughly equal but opposite..
A 750.0 kg boulder is raised from a quarry 125 m deep by a long uniform chain having a mass of 575 kg. What is the max acceleration the boulder can have
A 31.0-kg child on a 1.00-m-long swing is released from rest when the ropes of the swing make an angle of 30.0° with the vertical. Neglecting friction, find the child's speed at the lowest position.
question1a man of mass 700kg stands in a lift on a set of weighing scales. the scale is calibrated in newtons. assume a
A certain pipe has resonant frequencies of 385 Hz, 495 Hz, and 605 Hz, with no other resonant frequencies between these values. How long is this pipe
A dock worker applies a stable horizontal force of 79.0 {rm N} to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 14.0 {rm m} in the first 6.00 {rm s}.What is the mass of the bl..
A mass of 2.4 kg is moving at 19.2 m/s in the positive x direction. What is the total kinetic energy of both masses
Two stunt drivers drive directly toward each other. At time t=0 the two cars are a distance D apart, car 1 is at rest, and car 2 is moving to the left with speed v0, At what time do the two cars collide?
A damped mass-spring system oscillates at 280 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.4 cm and the energy of the oscillating system is then 84 J.
a 2190 kg car moving east at 10.4 ms collides with a 3170 kg car moving east. the cars stick together and move east as
A certain alarm clock ticks four times each second, with each tick representing half a period, What is the torsion constant of the coil spring and What is the moment of inertia of the balance wheel about its shaft
A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 4.0 m due east. For the second putt, the ball travels 3.1 m at an angle 20° north of east. The third putt is 0.50 m due north. What disp..
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