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Ten megawatts of electricity is to be transmitted over a power line of resistance 4 ohms. a.) If the electricity is generated at 10,000 V and is to be transmitted at 130,000 V, what should be the ratio of turns of the transformer? b.)At what current will the power be transmitted? c.) What percentage of the original power will be lost in the line because of resistive heating?
How many signals could fit into 1 MHz of bandwidth if each signal required 100 kHz of bandwidth and the separation between adjacent channels was 10 kHz
The best leaper in the animal kingdom is the puma, With what speed must the animal leave the ground to reach that height
Two resistors of values 6.0 and 12.0 W are connected in parallel. This combination in turn is hooked in series with a 4.0-W resistor and a 24-V battery. What is the current in the 6-W resistor?
A cylinder has a diameter of 15 centimeter. The water level in the cylinder is maintained at a constant height of 0.45 meter. determine how high the vertical stream of water
7.3-kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling. If the box is being lifted at a constant speed of 2.0 m/s, what is the power delivered by the person ..
A 0.49 kg block attached to a spring with force constant 150 N/m is free to move on a frictionless, At that instant, find the force on the block
The amount of internal enrgy needed to raise temperature of .25kg of water by .2 degreesCis 209.3J. How fast must a .25kg baseball travel in order for its kinetic energy to equal this internal energy.
A metallic wire has a diameter of 4.12 millimeter. When the current in the wire is 8.00 Amp, the drift velocity is 5.40 x 10-5 m/s. Find the density of free electrons in the metal
A car is traveling at 81.9 km/hr. The tires have a radius R = 38.4 cm. What is the angular speed of the tire
An 0.82 kg bucket full of water is being swung by a rope in a vertical circle of diameter 2.31 m. Compute the least speed a bucket must be moving so that the water doesn't fall out.
Now, a second resistor R2 of 3.2x10^5 ? is connected in parallel to the existing resistor in the circuit, What will be the new time constant
If a pendulum has a period of 2.5 son earth, what would be its period in a space station orbitingthe earth, what would be its period in the spcae
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