What effect do external forces likean applied force, friction force, ordrag force have?They have no effect on a system'smechanical energy.O They convert between mechanicalenergy and other forms of energy tochange the total mechanical energyof the system.O They convert kinetic energy intopotential energy.O They convert potential energy intokinetic energy.

Any external force acting on the system acts in such a way that the total mechanical energy of the…

Answered: What effect do external forces like an…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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C) The object in this figure moves under the action of force 13N on a smooth surface. What is the net work done on the object when it moves a distance of Sm, and e =37? (Take cos37" 0.8)
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A child of mass m = 16 kg slides down a slide of height h = 2.7 m without friction. Let gravitational potential energy be zero at ground level. a)Write an expression for the child's total mechanical energy, E, at the top of the slide, in terms of the variables in the problem and the acceleration due to gravity g. b)Calculate the change in the child's potential energy, ΔU in joules, from the top to the bottom of the slide at ground level (i.e. ΔU = Uground - Utop). c)What is the child's final speed, vf in m/s?
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In an amusement park, two identical cars, moving with speeds of the same value, same direction and opposite directions, collide head-on and stop immediately after impact. Comparing the kinetic energy and the amount of movement of the system constituted by the two carts, before and after the collision, it is correct to state that: . a) both increased . b) the kinetic energy remained constant and the amount of movement decreased. c) both decreased. d) both remained constant. e) the kinetic energy decreased and the amount of movement remained constant.
box, M initially at rest on a frictionless table, is pulled with constant force, F, through a distance d. A weight, m , lies on top of the box and is held in place with respect to the block by friction (coefficient μ) throughout the movement. What is the work, WP, done on the weight during the motion?

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