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A high-voltage transmission line with a resistance of 0.265 %u2126/km carries a current of 1.25 kA. The line is at a potential of 650 kV at the power station and carries the current to a city located 125 km from the power station. What is the power loss due to resistance in the line?
What fraction of the transmitted power does this loss represent?
A stone with a mass of 0.600kg is attached to one end of a string 0.800m long, Find the maximum speed the stone can attain without breaking the string
When 4425 J of heat are added to a 0.16-m-long silver bar, What is the mass of the bar
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
To get an idea of how empty deep space is on the average, perform the following calculations. Find the radius of a sphere of this volume in light years
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. What is the work done by the field on the electron
A student pushes a 60 kg couch across a carpet at a constant velocity. find the magnitude of the force of the student on the couch
A light rope 5m long supports a 30kg mass against gravity. What is the mass per unit length of the rope
from the scattering of sunlight, J. J. Thomson calculated the classical radius of an electron as having the value 2.82 ×10-15 m. Sunlight with an intensity of 500 W/m2 falls on a disk with this radius.
What is the maximum sideways angle. What is the train's acceleration after its wheel begins to stick.
The man completely inhales and jumps into the deep end of a pool with a depth of 9 feet. Calculate the net acceleration of the man with his breath completely inhaled while totally submerged in the water
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 21.0 days on average to complete one nearly circular revolution around the unnamed planet.
The rod is initially at rest and oriented horizontally and then released so that it swings to the bottom. Illustrate what are all the forces acting on the rod?
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