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A 240 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.20 ? 109 resistance. (For the questions below, explicitly show on paper how you follow the steps in the Problem-Solving Strategy for series and parallel resistors found on pages 511-2. Your instructor may ask you to turn in this work.)
(a) What is the resistance to ground of 100 of these insulators?
(b) Calculate the power dissipated by 100 of them.(c) What fraction of the power carried by the line is this?
A neutron of initial kinetic energy (Eini) scatters elastically from a target nucleus which is initiallt at rest. Find the maximum and average fractional kinetic energy loss F=1-(Efinal/Einitial)
A particle of mass m is constrained to move between two concentric impermeable spheres of radii r = a and r = b (a
A metal container, which has a mass of 9.4kg contains 18kg of water. A 1.8 kg piece of the same metal, initially at a temperature of 200°C, is dropped into the water. The container and the water initially have a temperature of 14.1°C and the final..
A 200 gm block of metal is heated to 100 degrees Celcius in boiling water. This block is after placed in an aluminum calorimeter cup (mass - 30gm; c - .22 cal/g degrees C) containing 180 gm of water at 20 degrees C.
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms . 1. What is the average current? Express your answer to two sig..
The coefficient of static friction between the 3000 lb car's tires and the road is 0.5. Determine the steepest grade the car can drive up at constant speed if car has (a) rear=wheel drive; (b) front-wheel drive; (c) four wheel drive.
The largest apple pie ever made was rectangular in shape and had an area of 7m× 12m. Consider a parallel-plate capacitor with this area. Imagine that the capacitor is filled with air and the distance between the plates is 1mm. a.
A 10.60 weather rocket generates a thrust of 220. The rocket, pointing upward, is clamped to the top of the vertical spring. The bottom of the spring, whose spring constant is 450, is anchored to the ground.
What is the distance traveled from starting point to launch for an aircraft, An aircraft starts at rest and is accelerated at 13.6 m/s/s for 11.3 seconds, at which time the aircraft launches.
A train is travelling up a 4.0 incline at the speed of 3.25 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily.
What is the smallest quantum of energy that can be absorbed by the molecule in a rotational excitation? What is the smallest quantum of energy that can be absorbed in a vibration excitation? In what regions of electromagnetic spectrum do the transiti..
What is eccentricity of the transfer ellipse
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