The momentum of a system is conserved as long as there is no net external force acting on the system O everything in the system is moving in a circle O everything in the system is at rest O the system is rigged

The momentum of a system is conserved as long as there is no net external force acting on the system O everything in the system is moving in a circle O everything in the system is at rest O the system is rigged

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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An electron with a speed of 1.0 x 107 m/s moves horizontally into a region where a constant vertical force of 4.3 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the time it has moved 35 mm horizontally.
An interacting system of two objects has no external force acting on the system. The firstobject has a mass 2.00 kg and is moving with a velocity (2.00 m/s)i + (1.00 m/s)j at time t =0.00 s. The second object has a mass 3.00 kg and is moving with a velocity (-1.00 m/s)i +(1.00 m/s)j at time t = 0.00 s. The second object is moving with a velocity (2.00 m/s)i +(-1.00 m/s)j at time t = 1.00 s. What is the total momentum of the system at time t = 0.00 s?
Problem 23: Three beads are placed on the vertices of an equilateral triangle of side d = 4.1 cm. The first bead of mass m1 = 135 g is placed on the top vertex. The second bead of mass m2= 55 g is placed on the left vertex. The third bead of mass m3 = 85 g is placed on the right vertex. Part (a) Write a symbolic equation for the horizontal component of the center of mass relative to the left vertex of the triangle. Part (c) Write a symbolic equation for the vertical component of the center of mass relative to the base of the triangle.
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-/1 In the figure, two long barges are moving in the same direction in still water, one with a speed of 11 km/h and the other with a speed of 21 km/h. While they are passing each other, coal is shoveled from the slower to the faster one at a rate of 780 kg/min. How much additional force must be provided by the driving engines of (a) the faster barge and (b) the slower barge if neither is to change speed? Assume that the shoveling is always perfectly sideways and that the frictional forces between the barges and the water do not depend on the mass of the barges.
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The free-body diagrams in the figure below give, from overhead views, the horizontal forces acting on three boxes of chocolates as the boxes move over a frictionless confectioner's counter. For each box, is its linear momentum conserved along the x axis and the y axis? (a) 43 N 4 N 6 N 2N 72 N O only conserved along x axis O only conserved along y axis conserved along both x and y axes O not conserved along either axis (b) 8 N 60° 60° 8 N 3 N 2 N 5 N O only conserved along x axis O only conserved along y axis conserved along both x and y axes O not conserved along either axis (c) 6 N 60° 4 N 5 N 60° 6 N O only conserved along x axis O only conserved along y axis O conserved along both x and y axes O not conserved along either axis O O O O
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