Move A Copper Rod That Is Resting On Two Horizontal Rails ~ Healthy Lifestyle

1. FRICTION vs. THE LORENTZ FORCE: A 2.0-kg copper rod rests on two horizontal rails 2.0 m apart and carries a current of 100 A from one rail to the other. The coefficient of static friction between the rod and the rails is .What is the smallest magnetic field (not necessarily vertical) that would cause the bar to slide?8-3 A 1.0 kg copper rod rests on two horizontal rails 1.0 m apart and carries a current of 50 A from one rail to the other. The coefficient of static friction between rod and rails is 0.60. What are the (a) magnitude and (b) angle (relative to the vertical) of the smallest magnetic field that puts the rod on the verge of sliding?A 3 kg particle is located on the x-axis at x = -5 m, and a 4 kg particle is located on the x axis at x = 3 m. Find the center of gravity of this two particle system. Ch 12.2 #8. The masses and coordinates of a rod, a right triangle, and a square are given. Determine the center of gravity for the three-object system.Static Friction is friction which is experienced when an object is placed on a surface. And, Kinetic friction is due to the movement of an object on a surface. Friction is well characterized by the coefficient of friction and is explained as the ratio between the frictional force and the normal force.ramp, you could determine the coefficient of friction between the book and the ramp. If the angle was 30 degrees, then the tangent of 30 degrees is about 0.58. That would be the static coefficient of friction in this case. Even if you increased the weight on the book, it would still slide at 30 degrees. Using time

PDF Home Work 8 - 國立臺灣大學

The coefficient of static friction between rod and rails is .60.What are the (a) magnitude and (b) angle (relative to the vertical) of the smallest magnetic field that puts the rod on the verge of sliding?friction between the rod and the rails, and (b) if the coefficient of friction is μ k (c) In which direction does the rod move, east or west, if the current through it heads north?Chapter 28: Sources of Magnetism 2. (I) If an electric wire is allowed to produce a magnetic field no larger than that of the Earth (0.5×10-4 T) at a distance of 15 cm from the wire, what is the maximum current theThe rod is placed in a vertical magnetic field. The rod begins to slide when the field reaches the value B = 0.168 . Assume that the rod has a slightly flattened bottom so that it slides instead of rolling. Use 9.80 m/s for the magnitude of the acceleration due to gravity. Find the coefficient of static friction between the rod and the rails?!So, the coefficient of static friction is equal to the tangent of the angle at which the objects slide. A similar method can be used to measure μk. To do that you give the top object a push as you increase the angle. When the top object keeps sliding with constant velocity, the tangent of that angle is equal to μk.

Ch 12 Static Equilibrium & Elasticity

A copper rod of mass #m# rests on two horizontal rails distance #L# apart and carries a current of #i# from one rail to the other. The coefficient of static friction between rod and rails is #mu_s#.The uniform rod has a mass m = 15 kg, and length L = 0.5m. It is supported by the smooth (assume frictionless) ring at B. If, at the 30° angle shown, the rod is on the verge of slipping, determine the coefficient of static friction µ s between the rod and the floor at point A. N B N A f A mg ENGR 2311: STATICS!FALL 2015 EXAM 04!PAGE 2A 0.200 kg metal rod carrying a current of 10.0 A glides on two horizontal rails 0.500 m apart. What vertical? magnetic field is required to keep the rod moving at a constant speed if the coefficient of kinetic friction between the rod and rails is 0.100?Static friction is a force that must be overcome for something to get going. The force of static friction increases with the applied force acting in the opposite direction, until it reaches a maximum value and the object just begins to move. After that, the object experiences kinetic friction.The rod begins to slide when the field reaches the value BBB = 0.157 TT . Assume that the rod has a slightly flattened bottom so that it slides instead of rolling. Use 9.80 m/s2m/s2 for the magnitude of the acceleration due to gravity. Find μs, the coefficient of static friction between the rod and the rails. (give answer numerically)

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