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A quarterback takes the ball from the line of scrimmage, runs backwards for 5.0 yards, and then runs sideways parallel to the line of scrimmage for 21.0 yards. At this point, he throws a 54.0 yard forward pass straight downfield, perpendicular to the line of scrimmage. Find the magnitude of the ball's resultant displacement?
Determined to test the law of gravity for himself, a student walks off a skyscraper 180 m high, stopwatch in hand, and starts his free fall (zero initial velocity).
The world's strongest magnet that can produce a sustained field is a 45-T device at the National High Magnetic Field Laboratory in Florida. What's the corresponding magnetic-energy density
How much work do the thrusters do?
a closely wound rectangular coil of 90 turns has dimensions of 20.0cm by 44.0cm. the plane of coil is rotated from a
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
A point charge with charge q1 is held stationary at the origin. A second point charge q2 with charge moves from the point (x1, 0) to the point (x2,y2 ). How much work is done by the electrostatic force on the moving point charge? Express your answ..
A capacitor of unknown capacitance C is charged to 100 V and then connected across an initially uncharged 60-μF capacitor. If the final potential difference across the 60-μF capacitor is 40 V, determine C.
Wayne pulls a 285 N sled along a snowy path using a rope that makesa 45.0degree angle with the ground. Wayne pulls with a force of 43.4 N. What power does Wayne produce
A car is safely negotiating an unbaked circular turn at aspeed of 19.1 m/s. The maximum static friction force acts on thetires. determine to what speed must the driver slow the car
It takes 2.7×106J of heat to bring a quantity of water from 24?C to a boil. What is the mass of water
A fast, measured pitched baseball left the pitcher's hand at aspeed of 40.0 m/s. How much time did it take him to pitch it
The mechanical advantage of a hydraulic jack is 450. Find the weight of the heaviest automobile that can be lifted by an applied force of 60.0 N
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