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(a) What is the resistance of a 225 V AC short circuit that generates a peak power of 96.0 kW?
(b) What would the average power be if the voltage was 120 V AC?
A typical American house requires an average 20 kW for heating. Explain how many homes could be heated with the waste heat of this one power plant?
Two coils are close to each other. The first coil carries a current given by i(t) = 5.60e-0.0250t sin 120πt, where i is in amperes and t is in seconds. At t = 0.835 s, the emf measured across the second coil is -2.75 V. What is the mutual inductan..
Utilize the mass-radius and mass-luminosity relations for main sequence stars to express the nuclear timescale of major sequence stars as a function of the mass of the star only.
Suppose 4.00 g of hydrogen is separatedinto electrons and protons. Suppose also the protons are placed atthe earth's North Pole and the electrons are placed at the SouthPole. What is the resulting compressional force on the Earth?
A boat takes 4h to travel down a 30km river, then 6.0h to return. How fast is the river flowing
the crew of an enemy space craft attempts to escape from your spacecraft by moving away from you at 0.281 of the speed
question explain whether mars was visible from your location at midnight on december 3 1999. when it is midnight at
Suppose you have a gamma ray photon of wavelength 0.0001 nm that hits a muon. If the exiting gamma ray comes out at 30°, what is the wavelength of the exiting photon
A 0.47 m long guitar string, of cross-sectional area 1.0 10-6 m2, has Young's modulus Y = 1.90 109 N/m2. By how much must you stretch the string to obtain a tension of 10 N
How does shortening the length a spring affect resonant frequencies
A movig particle encounters an external electric field thatdecreases its kinetic energy from 9510 eV to 6610 eV as theparticle moves from position A to position B. Theelectric potential at A is -59.0 V, and that at Bis +24.0 V. Determine the charge o..
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. What was the speed of the lighter car just after the collision
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