Physics, 31.10.2019 00:31, steviedude316
In the late 1800's, twenty-five percent of the world's nickel production came from nickel mines, pennsylvania. in one mining operation, nickel ore was loaded on carts that rolled on frictionless rails that ran from the dig-site, through the level mine, and were then pulled up a mine shaft inclined at 21.0° above the horizontal by a cable connected to a winch. a loaded ore car with a mass of 870 kg started from rest at the bottom of a 1100 m long ramp and was accelerated at a constant acceleration to a speed of 2.20 m/s in 11.0 s and then continued at this constant speed to the top of the ramp.(a) determine the maximum power the winch motor provides while the cart is accelerating. w(b) determine the power the winch motor needs to provide when the cart is moving at a constant speed. w(c) what is the total work accomplished by the winch motor by the time a loaded ore cart reaches the end of the ramp? j
Answers: 3
Physics, 22.06.2019 10:00, Trinhphuongtran
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Physics, 22.06.2019 10:00, myanniespencer39
Which accurately compares concave and convex lenses?
Answers: 2
In the late 1800's, twenty-five percent of the world's nickel production came from nickel mines, pen...
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