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A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 14.0cm , giving it a charge of -11.0μC.
A. Find the electric field just inside the paint layer.
B. Find the electric field just outside the paint layer.
C. Find the electric field 8.00cm outside the surface of the paint layer.
If friction and air resistance can be neglected, determine her speed vB when she reaches the horizontal end of the ramp at B.
A Dodge Caravan has a speed of 50 mph and an acceleration of 2 mph second. A Ford Taurus has a speed of 55 mph and an acceleration of 1 (mph) per second. Which car has the higher speed after 10 seconds have elapsed?
Two capacitors, one 17.5 ?F and the other 12.2 ?F are connected in series across a 15 V battery. What is the charge stored on the 12.2 ?F capacitor
A 48 kg skier starts from rest at a height of H = 27 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. avoid the effects of air resistance and assume the ramp is frictionles..
Three resistors, 23, 45, and 73 ?, are connected in series, and a 0.55-A current passes through them. (a) What is the equivalent resistance? (b) What is the potential difference across the three resistors?
An 84.4-mH inductor and a 6.27-µF capacitor are connected in series with a generator whose frequency is 361 Hz. Determine the rms voltage across the inductor
A distributed uniformly over a cross section perpendicular to the axis of the wire. Illustrate what is the magnitude of the magnetic field at a distance of 1.2 mm from the axis of the wire?
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total ene..
A yo-yo of mass 0.10kg and a radius of 0.03 m is released from rest, with the free end of the yo-yo string held fixed. Find the acceleration of the yo-yo
Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250- ball with zero net charge was dropped from rest at a height of 1.70. The ball landed 0.400 later. Next, the ball was given a net charge of 7.85 and dropp..
An object consists of a ball of weight W glued to the end of a uniform bar also of weight W. if you release it from rest, with the bar horizontal.
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