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Two bullets are fired at the same time with the same kinetic energy. If one bullet has twice the mass of the other, which has the greater speed? By what factor?
A 60 kg woman stands at the rim of a horizontal turntable having a moment of inertia of 500 kg-m2 and a radius of 2.0 m. In what direction and with what angular speed does the turntable rotate
A block with a mass m= 5.7 kg is pulled up a 29 degree incline with the force of magnitude F = 38N. Find the acceleration of the block if the incline is frictionless
A 4.0 kg ball is traveling at 3.0 m/s and strkes a wall. The 4.0 kg ball bounces off the wall with a velocity of 4.0 m/s. determine the average force on the ball
A red ball is thrown down with an initial speed of 1 m/s from a height of 27 meters above the ground. How long does it take the red ball to reach the ground
The heating element of a clothes dryer has a resistance of 11 ? and is connected across a 240-V electrical outlet. What is the current in the heating element
An archaeologist found a fragment bone of animal. It has an activity per gram of carbon that is 25% that of an equivalent sample of carbon from a similar living animal
A ball, initially at y = 0, is thrown straight down and takes 1.40 s to move 13.8 m in the - y direction. Calculate the initial velocity of the ball
An automobile of mass m = 1100 kg is being towed by a truck whose driver observes that the tension in the rope is T = 3700 N, What is the work done to overcome friction in the car
A photon of wavelength 4.220×10?2nm strikes a free electron and is scattered at an angle of 38.0?from its original direction
A positive point charge Q1 = 2.8×10?5C is fixed at the origin of coordinates, and a negative charge Q2 = ?5.5×10?6C is fixed to the xaxis at x=+1.5m. Find the location of the place(s) along the x axis
High jumpers usually sustain fractures in the lower third of the fibula. The world record for the high jump is held by Javier Sotomayor (Cuba) at 2.45 m (1993). what is the stress in the fibula
A rotating merry-go-round accelerates uniformly from rest to make one complete revolution in 2s. what is the magnitude of her total acceleration at t = 3s
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