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A satellite in a circular orbit around the earth with a radius 1.011 times the mean radius of the earth is hit by an incoming meteorite. A large fragment (m = 79 kg) is ejected in the backwards direction so that it is stationary with respect to the earth and falls directly to the ground. Its speed just before it hits the ground is 371 m/s. Find the total work done by gravity on the satellite fragment. RE 6.37 x 103 km; Mass of the earth= ME 5.98 x 10^24 kg.
A daredevil on a motorcycle leaves the end of a ramp with a speed of 39.0 m/s. what is the maximum height that he reaches
A metal sphere is filled with ammonia as part of a refrigeration device. what is the mass of the ammonia if it fills up half of the sphere
A spring-loaded gun fires a 0.080-kg puck along a tabletop. If instead it only rises to a height of 5.00 m because of friction, what is the change in mechanical energy
A bat strikes a 0.145 kg baseball. Just before impact, the ball is traveling horizontally to the right at 50.0 m/s, What is the horizontal component of the impulse the bat imparts to the ball
A laser used in eye surgery emits a 3.08 mJ pulse in 1.04 ns, focused to a spot 32.4 um in diameter on the retina. Calculate (in SI units) the power per unit area at the retina
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 79 kg, Determine the acceleration of the woman
As a rocket passes the earth at 0.75c, it fires a laser perpendicular to its direction of travel, What is the speed of the laser beam relative to the earth
Find out the drill's angular acceleration. Determine the angle through which the drill rotates all through this period.
A 1.02 kg mass is suspended from a wire changes the length of the wire by 1.20 mm. find the stress in the wire due to the suspended mass
Two blocks connected by a rope of negligible mass are being dragged by a horizontal force. Suppose F = 65.0 N, m1 = 10.0 kg, m2 = 26.0 kg, evaluate the acceleration of the system
A test rocket is launched, starting on the ground, from rest, by accelerating it along an incline with constant acceleration "a", what is the position vector when the rocket is at its highest point
A 55-kg man holds a weight of 20 kg on his head. what is the work done by him against gravity if he moves a distance of 20 m (1) on a horizontal road, (2) on an incline of 1 in 5 ? take g = 10 m/s.s
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