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Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt. Charge can be added until the electric field at the surface of the dome becomes equal to the dielectric strength of air. Any more charge leaks off in sparks as shown in the figure below. Assume the dome has a diameter of 40.0 cm and is surrounded by dry air with a "breakdown" electric field of3.00 106 V/m.
(a) What is the maximum potential of the dome?
kV
(b) What is the maximum charge on the dome?
C
what time delay Delta t is necessary. A boxcar of mass 600 tons at rest becomes uncoupled on a 5.00 grade. If the track is considered to be frictionless, what speed does the boxcar have after 15 seconds.
A 54.00 kg pole vaulter running at 10 m/s vaults over the bar. Her speed while she is above the bar is 1.0 m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
A flight attendant pulls her 63-N flight bag a distance of 277-m along a level airport floor at a constant velocity. The force she exerts is 35N at an angle of 57° above the horizontal. Determine the work completed by the force of friction on flig..
How much does the rocket clear the top of the wall
Spider-Man attempts to save passengers on an out-of-control train using his web-slinging power. If the train (m = 137,000 kg) was at first travelling at 33m/s and he needs to stop it within 46 s, what is the magnitude of force he must provide.
What will the traveler weigh on another planet. Two wires are identical, except that one is aluminum and one is iron. The aluminum wire has a resistance of 0.18 . What is the resistance of iron wire.
imagine a linebacker collides with a stationary quarterback and they become entangled. what will happen to the velocity of the linebacker-quarterback system if momentum is conserved.
A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wave-lengths are observed while the hydrogen relaxes back to the ground state. What is the wavelength of the incident beam.
What was the spring constant of the Super Bungee? How much time after the Super Bungee was attached did it take the bus to stop.
what is the magnitude FN at the highest point. The positive charges are arranged in a square. sides- .10 m the top right is 9 nC bottom right is 3 nC and the bottom left is 1 nC. find the magnitude of the electric field at the fourth corner of the ..
A motorist drives south at 30.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.8 min trip, how do you find the total vector, average speed and average velo..
A 60.0-kg skater begins a spin with an angular speed of 6.0 rad/s. By changing the position of her arms, the skater decreases her moment of inertia by 50%. Find the skater's final angular speed?
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