As the elevator starts, the scale has a constant reading of 599 n. as the elevator later stops, the scale reading is 385 n. assume the magnitude of the a person stands on a scale acceleration is the same during starting and stopping. the person. (a) detemine the weight n (b) determine the person's mass. acceleration of the elevator. (c) determine m/s

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.