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The puck in figure has a mass of .135 kg. If its original distance from the center of rotation is 31.2 cm, and the puck is moving with a speed of 75.0 cm/s. The string is pulled downward 11.1 cm through the hole in the frictionless table. Determine the work put on the puck.
A 700 kg piston is initially held in place by a removable latch above a vertical cylinder. The cylinder has an area of 0.1 m^2; the volume of the gas within the cylinder is initially 0.1 m^3 at a pressure of 10 bar.
A hot dog cooker heats hot dogs by connecting them to 120 V household electricity. A typical hot dog has a mass of 50g and a resistance of 130ohm . How long will it take for the cooker to raise the temperature of the hot dog from 20c to 80c ? The ..
A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 18.0 m. What is the magnitude of the force that the shopper exerts
a coil has an inductance of l=0.65mh and resistance of r=0.75 ohms . it is connected to the terminals of a battery with a emf of 1.5V, find the final steady-state or equilibrium current
A child attempts to drink water by a 100 long straw but finds that water rises only 75 .By how much has the child reduced the pressure in her mouth below atmospheric pressure.
A large tanker truck can carry 30 ton of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.
Two metal balls are hung from strings. The first ball, 0.14 kg, is pulled to the side and released, What is the mass of the second ball
a thin, uniform bar of length D = 1.28 m and mass M = 0.67 kg pivoted at the top. find the speed of the particle before impact
Two trains, each having a speed of s, are headed at each other on the same straight track. what is the total distance the bird travels
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. what is the area of the leaf in square meters
Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Calculate the maximum force exerted on the baby by the planet Mars
q1. two plane mirrors are separated by 140deg as drawing illustrates. if a ray strikes mirror m1 at the 75deg angle of
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