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When you strike the cue ball with a pool cue, it usually slips a bit before it starts rolling without slipping. However, there is a strike point on the ball which gives rolling without slipping (assume the strike is horizontal), no matter how hard you hit. Find this point, which is also the height of the bumpers at the edge of the table, so that the balls bounce off without slipping.
question a transformer with a turns ratio secondaryprimary of 114 is used to step down the voltage from a 120-v wall
A tuning fork generates sound waves from a frequency of 246 Hz. The waves travel in opposite directions along a hallway, are reflected by end walls, and return. The hallway is 47.0m long and the tuning fork is located 14.0 m from one end.
A collision between two pucks on an air-hockey table. Puck A has a mass of 0.025 kg and is moving along the x-axis with a velocity of +5.5 m/s. It makes a collison with puck B, which has a mass of 0.050 kg and is initially at rest.
a) Starting with Newton's 2nd law, show (by an equation) that force relates to change in momentum. b) State this relationship as a sentence.
A dog sitting 3.7m from a vertical mirror thinks its image is another dog. How far is the image from the dog
In this particular problem and solution, the answer makes sense butone of the conversions does not. For the conversion from density in cm cubed to the density in meters cubed why is the conversion times 10^3? how did this conversion come about when t..
A tight rope walker who weighs 640 Newton walks along a steel cable. Calculate the cross-sectional area of the cable
A terrorist opens a vial of viruses in the center of a 10 x 10 m classroom, allowing them to become airborne. If the viruses have a mass of 2.5 *10^-22 g and the temperature of the room is 25 degrees C, how far will they have diffused from their s..
A 0.80 kg body oscillates on a spring that, when extended 3.0 mm from equilibrium, has a restoring force of 5.0 N. find the angular frequency of oscillation
A ball of mass m falls from height h,to height hf near the surface of the Earth, as shown at right. When the ball passes it has a speed vf. Ignore air resistance, and assume that any changes in kinetic energy of the Earth are negligible.
Velocity of a moving particle is expressed by v = 2t2-t3, where y is in m and t is in seconds. What is its average velocity between t=0 and t=2seconds
A 22.5 g bullet is fired from a rifle. It takes 2.60 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
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