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A charge +4.5 ?C is placed at the center of the hollow spherical conductor with the inner radius 3.1 cm and outer radius 5.0 cm. Suppose the conductor initially has a net charge of +9.0 oC instead of being neutral. What is the total charge (a) on the interior and (b) on the exterior surface?
The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. What is the current coming from the wall socket
A 12.0-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 12.2 m/s, determine the rotational kinetic energy about its center of gravity
Suppose that when you ride on your 8.50 kg bike the weight of you and the bike is supported equally by the two tires. If the gauge pressure in the tires is 65.5 lb/in2 and the area of contact between each tire and road is 7.13 cm2, what is your wei..
A 1000-kg car travelling at a speed of 32 m/s skids to a halt on wet concrete where f_k = 0.3. How long are the skid marks.
Illustrate what is the general direction of the airplane's velocity? east of south, north of west,north of east, or west of south?
Multiple-Concept Example 3 provides some pertinent background for this problem. Suppose a single electron orbits about a nucleus containing two protons (+2e), find the magnitude of the electron's centripetal acceleration
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. find the distance (in m) between the cliffs
A woman holds a tube of lipstick 3.5 cm from a spherical mirror and notices that the image of the tube is upright and one third its normal size. (a) Determine the position of the image. Is it in front of or behind the mirror? (Use a negative number b..
A railroad car of mass 2.3 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
A 5.70-kg ball is dropped from a height of 12.0m above one end of a uniform bar that pivots at its center. The bar has mass 6.00kg and is 4.80m in length. At the other end of the bar sits another 5.10-kg ball, unattached to the bar. The dropped ball ..
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. How do the two sets of values compare
A 3690-line/cm grating produces a third-order fringe at 21.4deg angle. What wavelength of light is being used
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