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A small power plant produces a voltage of 6kV and 150A. the voltage is stepped up to 240kV by a transformer before it is transmitted to a substation. The resistence of the transmission line between the power plant and substation is 75 ohm
a. What is the current in the transmission line from the plant to the substation?
b. What % of the power produced is lost in transmission to the substation?
Treat a cell in a human as a sphere of radius 1.0 µm. What's the volume of the cell
A metal sphere hangs from a string and has 4 kg of mass. The sphere has a charge of +2.3 µC. What is the electric force on the metal sphere if the magnitude of the electric field is 106 N/C
When the wire is removed, the spheres repel each other with an electrostatic force of 0.0394 N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge in coulombs on one of them and (b) the positive cha..
A 385-kg cannon, sliding freely on a frictionless horizontal plane at a speed of 7.13 m/s, shoots a 13.5-kg cannonball at an angle of 53.3° above the horizontal. What is the velocity of the ball relative to the cannon
A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 18.9 m/s directly upward. How long does it take to reach the maximum height
an electron in an x-ray machine is accelerated through a potential difference of 1.00 X 10^4 V, What is the kinetic energy of the electron
An object is placed in front of a concave mirror with a 21.4-cm radius of curvature. At what distance is the object from the mirror
the mass of a muon is 105.7 MeV/c^2. what is the value of the Rydberg constant for a muonic atom and what is the binding energy of a muonic atom
a light spring whose unstretched length is 2.0 cm. You're going to use this spring to measure charge. First, you attach one end of the spring to the ceiling, What is the charge on the ball
A plane wave of wavelength 580 nm is incident on a slit with a width of a = 0.50 mm. A thin converging lens of focal length +80 cm is placed between the slit, How far is the screen from the lens
Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break? Please Help Guys
1. the ground state ofnbsp has jpi 32-1 the first excited state at 67.4 kev has jpi 12-1 and the second excited state
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