uppose the airplane carries 130 passengers with an average mass of 53 kgkg each. After disembarking, all these passengers get on a freight elevator, which itself has a mass of 770 kgkg . How fast can the elevator's 6000 hphp motor lift the loaded elevator

Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly

How much hereditary information is contain in a human sex cell

A60-kg box is being pushed a distance of 6.8 m across the floor by a force p with arrow whose magnitude is 162 n. the force p with arrow is parallel to the displacement of the box. the coefficient of kinetic friction is 0.24. determine the work done on the box by each of the four forces that act on the box. be sure to include the proper plus or minus sign for the work done by each force. (the floor is level and horizontal. forces that act on the box: pushing force p, frictional force f, normal force n, and weight mg.)