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Two objects moving with a speed v travel in opposite directions in a straight line. The objects stick together when they collide, and move with a speed of after the collision. What is the ratio of the final kinetic energy of the system to the initial kinetic energy?
q.1 a driver is driving at 68 mihr on a straight highway. he sees an accident on the road in front of him so he slams
A 12.0 kg box resting on a horizontal, frictionless surface is attached to a 5.00 kg weight by a thin, After the system is released, find the horizontal tension in the wire
A charge of -1.0 µC is located at the origin, a second charge of 2.6 µC is located at x = 0, y = 0.1 m, Find the forces that act on each of the three charges
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. how fast was the ball travelling
At a temperature of 1.66 °C, the mass and volume of a fluid are 798 kg and 1.20 m3. The coefficient of volume expansion is 1.58 x 10-3 (C°)-1. What is the density of the fluid at this temperature
A cannon is fired horizontally with a velocity of 35.0 m/s from a height of 10 meters. With what total velocity does it strike the ground
A solid, uniform cylinder of mass M = 0.641kg and radius R = 5.08cm rolls at a center-of-mass speed of 0.254 m/s without slipping on a horizontal surface toward a ramp that makes an angle of 25? with respect to the horizontal
A diving board length = 5.60 that weighs 210 is supported by two pillars. One pillar is at the left end of the diving board; other is distance = 1.60 away. Find out the magnitude of force exerted by the left pillar while an 85.0 diver stands at th..
A speed skater moving across frictionless ice at 8.80 hits a 4.20-m-wide patch of rough ice. What is her acceleration on the rough ice
What is the net force exerted by these two charges on a third charge q_3 = 53.5nC placed between q_1 and q_2 at x_3 = -1.100m
two converging lenses, each of focal length 15.0 cm, are placed 40cm apart, and object is placed 30cm in front of the first. what is the magnification of the system
A uniform plank of length 5.8m and weight 229N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 450N walk on the overhanging part of the plank be..
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