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A 10 kilogram crate is sliding at a constant speed of 7 m/s along a frictionless horizontal table, when it encounters a friction patch (μs=0.7, μk=0.4).
a) Obtain the work done by gravity acting on the crate, after it has slid 5 meter?
b) Obtain the speed of the crate after sliding this distance.
c) Some time later, the crate comes to rest. Determine how much total work is done on the crate, from start to finish? (From when it enters the friction patch to when it stops).
A neutral conductor contains a hollow cavity in which there is a +100 nC point charge. what is the charge on the exterior surface of the conductor
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Consider a 2.4-mH coil carrying a current of 1.1 Amp clockwise. find what average emf will appear across the coil
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Find the magnitude of the acceleration for an electron in a uniform electric field with a magnitude of 122 N/C.
Two 0.70g spheres are charged equally and placed 2.4 cm apart. what is the charge on each sphere
Calculate the per capita energy use for China and India. The populations of each country should be obtained from reliable sources. Express your final answer in units of kcal per day per person.
Assuming the train has an average speed during a trip from the train stop to the airport of 250[km=hr], how long will it take to make the trip [minutes]. Assuming the train can accelerate to its fastest speed in 5[s]
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