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The dome of a Van de Graaff generator receives a charge of 2. 10^-4 C. Find the strength of the electric field in the following situations. (Hint: Review properties of conductors in electrostatic equilibrium. Also, use the points on the surface are outside a spherically symmetric charge distribution; the total charge may be considered to be located at the center of the sphere.)
(a) inside the dome
(b) at the surface of the dome, assuming it has a radius of 2.0 m
(c) 5.0 m from the center of the dome
Water at a pressure of 4 atm, at street level, flows into a building at 0.5 m/s through a 6 cm diameter pipe. Calculate the water pressure and velocity on the top floor
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If the sphere is enclosed in a room whose walls are kept at-5°C, what is the net flow rate of energy out of the sphere
Travelling at the speed of 14.10 m/s, driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.650. What is the speed of automobile after 1.130 s have elapsed..
a tennis player receieves a srve with the ball travelling horizontally towards him at 50 m/s: what was the change in momentum of the ball
question1two window washers bob and joe are on a 3.00 m long 380 n scaffold supported by two cables attached to its
A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.620 m. Find the linear acceleration of the bicycle
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.90×10^6 N, one at an angle 17.0 degrees west of north, What is the total work done by the two tugboats on the supertanker
A small branch is wedged under a rock and rest on a smaller object. The smaller object is 1.0 m from the large rock and the branch is 4.0 m long. what force must be exerted on the smaller rock
a spring with a spring constant of 230.6 nm is compressed by 0.251 m. then a steel ball bearing of mass 0.0441 kg is
Suppose you decide to take a trip in your car today. You start out and drive 32 miles in 20 minutes, What is your average speed for the entire trip including when you were parked
Assuming the motor is supplied through an equivalent 208 V source with an impedance of 0.18+j0.15W, determine the voltage at the motor terminals during normal operation (slip of 3%).
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