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a 0.40kg soccer ball approaches a player horizontally with avelocity of 20m/s to the north. Theplayer strikes the ball and causes it to move in the oppositedirection with a velocity of 24m/s. what impulse was delivered by the player?
The cheetah is one of the fastest accelerating animals, for it can go from rest to 26.8 m/s in 3.89 s. determine the average power developed by the cheetah during the acceleration phase of its motion
A train is traveling up a 4.6° incline at a speed of 3.27 m/s when the last car breaks free and beginsto coast without friction. How far did the last car travel before momentarily coming to rest
A football is kicked straight up into the air; it hits the ground 4.4s later. With what speed did it leave the kicker's foot
q1. a certain compact disc player draws a current of 290 ma at 36.0 v. how much power is necessary to operate the
It is desired to project an image of an object four times actual size with a lens of focal length 20 cm. What object distance should be used
A stone is dropped into the water from a bridge 144ft above thewater. another astone is thrown vertically down 1s after thefirst is dropped. what was the initial speed of the second stone
A 70.0kg archer, standing on frictionless ice, shoots a 100g arrow at a speed of 50m/s. What is the recoil speed of the archer
two identical conducting spheres fixed in place attract each other with an electrostatic force of 0.155 n when their
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 4.72 x 105 N. What is the work done on the jet by the catapult
two objects of unequal mass hung vertically over frictionless pulley of negligible mass. Determine the magnitude of the acceleration of the two objects
Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 5.85 m/s. Ignore frictional losses. What is the height of the hill
A 47 g block of copper at -10 C is added to 150 g of water in a 71g aluminum cup. The cup and the water have an initial temperature of 4.2 C. Find the equilibrium temperature of the cup and its contents. What mass of ice, if any, is present when t..
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