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A high-voltage transmission line with a resistance of 0.33 omegacap.gif/km carries a current of 1040 A. The line is at a potential of 670 kV at the power station and carries the current to a city located 159 km from the station.
(a) What is the power loss due to resistance in the line?
(b) What fraction of the transmitted power does this loss represent?
A series RLC circuit has components with R = 50ohms, L = 0.15H, C = 20uF. The circuit is driven by a 120-V, 60-Hz source. What is the power delivered to the circuit
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..
A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 150 cm, Find the magnitude and direction of the second displacement
An atom of U238 spontaneously decays into two components. One is a small fragment that is ejected with a speed of 1.50x107 m/s, what are the masses of the fission products
In coming to a stop, a car leaves skid marks 82m long on the highway. Assuming a deceleration of 6m/s2, estimate the speed of the car just before braking.
Froima plotted graph a student determined that the best fit line had a slope of 1.227m/s^2 and a y-interecept of 0.32m/s. Determine the uncertainty for the slop of the line
Two stationary positive point charges, charge 1 of magnitude 3.10 nC and charge 2 of magnitude 1.74 nC, are separated by a distance of 36 cm. An electron is free from rest at the point midway between the two charges, and it moves along the line con..
What is magnitude of the Coulomb force
He wants to row directly across a river 252 wide with a constant of 1.33 m/s. Illustrate what direction should he aim his boat, and low long will it take him to cross the river
If the two halves of the log only separate by a distance of 0.05m while the wedge travels 0.2m into the log, how much force is the wedge exerting on the two halves of the log to rip them apart.
The speedometer of a truck shows the linear velocity of the truck but actually measures the angular velocity of the wheels and converts that to the linear velocity. If the tires are changed out and larger diameter tires replace the stock tires, does ..
Suppose the steel alloy is used for an automobile axle that rotates at an average rotational velocity of 600 revolution per minute (RPM). What is the highest lifetime of continuous driving that are allowable at stress level of 310-MPa.
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