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A 0.016-kg bullet traveling at 203.6 m/s east hits a motionless 1.9-kg block and bounces off it, retracing its original path with a velocity of 100.7 m/s west. What is the final velocity of the block? Assume the block rests on a perfectly frictionless horizontal surface.
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.230 T, find the speed of the electron and the radius of the circular path
A 66 cm long, 0.8 mm diameter steel guitar string must be tightened to a tension of 2100 N by turning the tuning screws. By how much is the string stretched
A man observes snow falling vertically when he is at rest, but when he runs through the falling snow at a speed of 5.50 m/s, Find the speed of the snow relative to the earth
A guy is spinning initially at a constant rate with his arms at his sides. He then puts his arms straight out. How much does his moment of inertia change when he sticks his arms out
display that Gauss' law is satisfied for the magnetic field due to a straight wire that carries a current I in the +z - direction for a volume that represents a portion of a cylindrical shell of height h, extending from a radius r to a radius R a..
What was the displacement of the spring. An elevator and its load have a combined mass of 1400 kg. Find out the tension in the supporting cable when the elevator, originally moving downward at 12 m/s, is brought to rest with constant acceleration i..
When people sleep, their metabolic rate is about 2.6 x10-4 C/(s.kg). How numerous Calories does a 69 kg person metabolize while sleeping 9 hours.
A uniform thin rod of length 0.65 m and mass 4.5 kg can rotate in a horizontal plane about a vertical axis through its center. what is the magnitude of the bullet's velocity just before impact
To kick a football, the kicker rotates his leg about the hip joint. If the velocity of the the kickers shoe is 30.3 m / s and the hip joint is 1.24 m from the tip of the shoe, what is the shoe tip\'s angular velocity
A blood transfusion is being set up in an emergency room for an accident victim. What is the distance h above the victim's arm where the level of the blood in the transfusion bottle should be located
A football is thrown toward a receiver with an initial speed of 20 m/s at an angle of 30.0o above the horizontal. At that instant, receiver is 20 m from the quarterback. In what direction and with what constant speed must the receiver run in order..
A bomb, initially at rest, explodes into three fragments that move as shown. What is the mass, m, of each of the lower two fragments in kg
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