Physics, 17.07.2019 21:20 mckenziebeach5ox9oy3
Aloaded ore car has a mass of 950 kg and rolls on rails with negligible friction. it starts from rest and is pulled up a mine shaft by a cable connected to a winch. the shaft is inclined at 24.0° above the horizontal. the car accelerates uniformly to a speed of 2.00 m/s in 12.5 s and then continues at constant speed. (a) what power must the winch motor provide when the car is moving at constant speed? kw b) what maximum power must the motor provide? kw (c) what total energy transfers out of the motor by work by the time the car moves off the end of the track, which is of length 1,250 m?
Answers: 1
Physics, 21.06.2019 18:20
What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black
Answers: 1
Physics, 21.06.2019 21:20
Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above
Answers: 3
Physics, 21.06.2019 23:30
Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle
Answers: 1
Physics, 22.06.2019 01:30
Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor
Answers: 1
Aloaded ore car has a mass of 950 kg and rolls on rails with negligible friction. it starts from res...
Advanced Placement (AP), 23.10.2020 15:20
Computers and Technology, 23.10.2020 15:20
Social Studies, 23.10.2020 15:20