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A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, the distance traveled by the car before it comes to rest is 64m. Compute the time it takes for the car to come to rest.
lens forms an image of an object. The object is 16.0 cm from the lens, What is the focal length of the lens? Is the lens converging or diverging
A man stands on the roof of a building of height 16.8m and throws a rock with a velocity of magnitude 31.8m/s, Calculate the magnitude of the velocity of the rock just before it strikes the ground
A turntable with a moment of inertia of 4.8 kg · m2 rotates freely with an angular speed of 33 1/3 rpm. Calculate the angular speed of the turntable
A thermos contains 159 cm3 of coffee at 93.7 °C. To cool the coffee, you drop two 13.2-g ice cubes into the thermos. What is the final temperature of the coffee
A proton (with a rest mass m=1.67×10?27kg) has a total energy that is 4.00 times its rest energy. What is the magnitude of the momentum p of the proton
A small ball of mass 62 g is suspended from a string of length 37 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 33? with the perpendicular, find the centripetal force experienced by the ball. The accelerati..
A coin placed 29.0 cm from the center of a rotating, horizontal turntable slips when its speed is 50.2 cm/s, What is the coefficient of static friction between coin and turntable
Find out ratio of the detector
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 x 105 m/s. What is the distance of closest approach?
you're helping with an experiment in which a vertical cylinder will rotate about its axis by a very small angle. you need to devise a way to measure this angle. you decide to use what is called an optical lever. How many degrees has the cylinder ro..
A 70 kg man (rad=0.25m) standing on a 10-kg disc (rad=0.4m) with his arms extended (rad=0.9m) holding a 15-kg weight in each hand. What is the rotational inertia of man with weights.
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 51° C. What is the temperature coefficient of resistivity
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