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A 5 kg box is pulled on a horizontal surface by a horizontal rope. The coefficient of kinetic friction is 0.25. What is the force required to move the box withconstant speed? Use g=10 m/s2
question1take two indistinguishable metallic tumblers a and b. insulate one tumbler say a by wrapping chart paper
A thin spherical shell of mass 0.450kg and diameter 0.160 m is filled withalcohol (= 806 kg/m3). Find the acceleration of the alcohol filled shell as it rises toward the surface of the water
Assuming the air in the heat exchanger acts as a heat sink having an average temperature of 25°C, determine the minimum power supplied to the heat pump, in kW
How far does the object compress the spring if same experiment is performed on the moon, where g = 1.63 m/s2 and air resistance is neglected.
A 0.105-kg ball is dropped from rest. If magnitude of the ball's momentum is 0.790 kg · m/s just before it lands on the ground, from what height was it dropped.
A truck is traveling at 13.0 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle of 15 ° with respect to the horizontal. The coefficient of kinetic friction between the tires and the road is 0.994. How far does the truck ..
Find out the induced emf in the loop at an instant
Mark and Clark are identical twins at the amusement park riding on the bumper cars. Both boys have the same mass, 85kg. The cars are identical with a mass of 120 kg.
A crate of mass 11.5 kg is pulled up arough incline with an initial speed of 1.50 m/s. The pulling forceis 100 N parallel to the incline, which makes an angle of16.0° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate..
A capacitor is connected to an ac generator that has a frequency of3.7 kHz and produces a voltage of1.9 V. The current in the capacitor is 32 mA. What voltage does the second generator produce
70 grams of water at 85°C are mixed with an equal amount of water at 15°C in a completely insulated container. How much heat is gained by the cold water
A 57 kg student sits on a chair which is solely supported by a solid 1/2 meter long steel rod 1cm in diameter. To the nearest micron (millionth of a meter) what is the change in length of the rod produced by the student's weight.
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