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A generating station is producing 1.90*106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometre of length of 5.00*10-2Ω/km
a) Discover the power used to heat the wires if the power is transmitted at 1000 V
b) A 110:1 step-up transformer is utilizing to raise the voltage before the power is transmitted. How much power is now used to heat the wires?
Determine the inductance of a solenoid with 650 turns in a length of 20cm . The circular cross section of the solenoid has a radius of 4.1cm
A vacuum diode consists of a cylindrical cathode of radius 0.05cm, mounted coaxially within a cylindrical anode 0.45 cm in radius. Find its speed when it strikes the anode
in rutherfords scattering experiments alpha particles charge 2e were fired at a gold foil. consider an alpha particle
The definition of power differs from the definition of work in that the former always involves...
n a circuit, a current of 4A is drawn from a battery. The current then divides, What is the value of the other resistor
Use the work-energy theorem to solve each of these problems. Youcan use Newton's laws to check your answers. Neglect air resistancein all cases. A branch falls from the top of a96.0-m-tall redwood tree, startingfrom rest. How fast is it moving when ..
A helicopter holding a 70-kg package suspended from a rope 5.0 m long accelerates upward at a rate of 5.2 m/s2. Ignore air resistance on the package. Find the distance between the helicopter and the package
The location of a particle (in m) is given by its x, y and z coordinates as function of the time, calculate the y-component of the average velocity between t = 3.00 s and t = 12.00 s
A 240g- mass is attached to a spring of constant k=5.6 N/m and set into oscillation with amplitude 25 cm. Determine the maximum force in the spring
In exercising, a weight lifter loses 0.143 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. Determine the minimum number of nutritional Calories of food
a spherical shell with an inner radius of 10 cm and outer radius of 12 cm contains a net charge 10uc. at the center of
Babies recovering from surgery need to be fed milk from an open syringe through a nasogastric tube, a slender tube that passes in one nostril and down into their stomach
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