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A current I1 flows from infinity to a point charge at the origin through a thin wire along the negative y-axis and a current I2 flows from the point charge to infinity through another thin wire along the positive y-axis. From considerations of uniqueness of AC H dl, find the displacement current emanating from (a) a spherical surface of radius 1 m and having its center at the point (2, 2, 2) and (b) a spherical surface of radius 1 m and having its center at the origin.
What is the magnitude of the maximum possible acceleration for a car, when the coefficient of static friction is 0.87 and the coefficient of kinetic friction is 0.71
the punter on a football team tries to kick a football so that it stays in the air for a long hang time. if the ball is
A small block on a frictionless horizontal surface has a mass of 2.25×10?2kg . It is attached to a massless cord passing through a hole in the surface. (See the figure below (Figure 1) .) The block is originally revolving at a distance of 0.255m from..
a hockey player wants to pass the puck to his team mate. the puck needs to go a distance of 30 meters before coming to a rest. what initial velocity should be given to the puck
A steel ball is dropped from a building's roof and passes a window, taking 0.13 s to fall from the top to the bottom of the window, a distance of 1.20 m. How tall is the building
A car of mass 100 kg moving on a horizontal road with a steady velocity of 10 m/s has a total frictional on it of 400N. Find the power due to the engine.
three 0.04 kg particles have been glued to a rod of length L = 13 cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is required to change the rotational rate
Joe is pulling an old wooden crate filled with rocks along the floor with a force of 342 Newton's and the velocity is constant. It is in what we call dynamic equilibrium. Draw a picture of the crate and show and label the directions of the four fo..
a test rocket is fired vertically upward from a well. a catapult gives it an initial speed of 81.0 ms at ground level.
A proton at speed v=3.20*105 m/s orbits at a radius of 2.4 cm outside a uniformly charged sphere. Determine the total charge on the sphere
In each of the diagrams below, one or more external forces act on the indicated system. Which of the forces listed below are the reaction to the external force mentioned? (Select all that apply.)(a) the mower exerts a forceupward on the Earth due to ..
The small mass m sliding without friction along a looped track is to remain on the track at all times, Calculate the magnitude of the normal force exerted by the track at the top of the loop
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