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In a pool game, the cue ball, which has an initial speed of7.0 m/s, make an elastic collision withthe eight ball, which is initially at rest. After the collision,the eight ball moves at an angle of 30° to the originaldirection of the cue ball.
(a) Find the direction of motion of the cueball after the collision.
(b) Find the speed of each ball. Assume that the balls have equal mass.
A player kicks a ball from ground level with an initial velocity of 27.00 m/s at 30 degrees above the horizontal. What is the ball's range to one decimal place
Assume air resistance is negligible; from what height (in cm) above the compressed spring was the block dropped.
A 2200 kg elevator is attached to a 1500 kg counterweight. What power must the motor supply to raise the elevator at 0.5 m/s
A long pair of wires conducts 28.10 A of dc current to, and from, an instrument. If insulated wires are of negligible diameter but are 2.8 mm apart, what is the magnetic field d = 11.2 cm from their midpoint, in their plane.
A box that weighs 300 N is pulled across a level surface with a constant velocity. What is the normal force of the floor on the box
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A gas expands, changing its volume by +4.24×10-4 m3 while at a constant pressure of 6.44×105 Pa. What is the work done by the surroundings on the gas
A 11.3-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 10.7 m/s, find the translational kinetic energy of its center of gravity
A thin rectangular plate of uniform areal density ? = 2.84 kg/m2 has length of 35.0 cm and width of 21.0 cm. Calculate the mass of plate
A metal ball with a mass of 2.29·10-6 kg and a charge of +4.57 mC has a kinetic energy of 4.51·108 J. how close will it come to the plane before stopping
A +6.00-µC charge is moving with a speed of 6.30 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
questiona status newtons first law of motion. b a 2-kg object is affecting horizontally with a speed of 4 ms. how much
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