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Q1. A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
Q2. A .280 kg croquet ball makes an elastic head on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. What is the mass of the second ball? What fraction of the original kinetic energy gets transferred to the second ball?
The weight of passengers on a roller coaster increases by 60% as the car goes through a dip with a 38m radius of curvature
Two identical 0.13 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, where x2 = 0.04 m.
q1. an archer puts a 0.30 kg arrow to the bowstring. an average force of 201 n is exerted to draw the string back 1.3
A student is standing on a ladder as shown in the figure to the right. Each leg of the ladder is 2.7 m long and is hidged at point C. What is the tension in the tierod
A disc-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 rev/min. What was the stone's initial kinetic energy
The time constant of an RL circuit with L = 25 mH is five times the time constant of an RC circuit with C = 40 µF. What is the time constant of the RL circuit
Sunlight falls on two polarizers with their polarization axes oriented 57° to one another. What fraction of the light intensity is transmitted
A ball is kicked from the ground toward a fence that is located 25 m away. By how much does the ball clear the fence
Suppose we have a uniform sphere (radius R) of 1 M of hydrogen. What is the column density through the center of the sphere
How much charge is applied to each of the cylinders.
question1the ink drops have a mass 1.00times10-11 each and leave nozzle and travel horizontally toward the paper at
Heather and Jerry are standing on a bridge 56 above a river. Heather throws a rock straight down with a speed of 15. Jerry, at accurately the same instant of time, throws a rock straight up with the equal speed. Overlook air resistance.
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