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Question: How would your answer to Exercise change if the potential difference was caused by a point charge rather than by oppositely charged parallel plates?
Exercise: How much energy will be required to move a -2 µC particle from the 8V equipotential surface to the 4V equipotential surface between a pair of oppositely charged parallel conducting plates?
Riders in an amusement park ride shaped like a Viking ship hung from a large pivot are rotated back and forth like a rigid pendulum. Find the speed of the riders at the bottom of its arc
A 109 V potential difference is applied to a space heater whose resistance is 12 when hot. At what rate is electrical energy transferred to heat
Old naval ships fired 14 cannon balls from a 240 cannon. It was very important to stop the recoil of the cannon, since otherwise heavy cannon would go careening across the deck of the ship.
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 54.7 cm and the flow speed of the petroleum is 13.9 m/s. what is the pipe\'s diameter at the refinery
A horizontal force of 100 N is applied to move a 45-kg cartacross a 9.0-m level surface. What work is done by the 100-N force
A 73.6 kg weight-watcher wishes to climb a mountain to work off the equivalent of a large piece of chocolate cake rated at 514 (food) Calories. How high must the person climb
The dimensions of a parallel-plate capacitor are all increased by a factor of four. By what factor does the capacitance change
Pushing on the pump of a soap dispenser compresses a small spring. When the spring is compressed 0.50 cm, its potential energy is 0.0025 J. What is the force constant of the spring?
Using the medium p model of the line, Find the current, voltage, reactive power, real power, & power factor at the sending end of the line.
Calculate the acceleration of a 1400-kg car that stops from 39 km/h "on a dime" (on a distance of 1.7 cm). Determine the acceleration of the car. How many g's is the magnitude of the acceleration of the car?
A speeder is racing down the road at a constant speed of 90mi/h. A police officer is having coffee while the speeder zips past her. How Far down the road does the officer catch the speeder
Calculate the momentum of a 17m^3 of air (density of 1.3kg/m^3) hitting a sky diver traveling 52 m/s
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