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A lamp (R = 147 ), anelectric heater (R = 26),and a fan (R = 48 ) areconnected in parallel across a 115 Vline.a) what total current is supplied to the circuit?b) what is the voltage across the fan?c) what is the current in the lamp?d) what power is expended in the heater?
A hydraulic lift is used to jack a 970 kg car 12 cm off the floor. The diameter of the output piston is 18 cm, and the input force is 250 N. What is the area of the input piston
An air puck of mass 0.250 kg is tied to a string and allowed to revolve in a circle of radius 1.14 m on a frictionless horizontal table. What is the speed of the puck
A plate carries a charge of -3.9 µC, while a rod carries a charge of 2.9 µC. How many electrons must be transferred from the plate
A charge Q is uniformly distributed throughout a nonconducting sphere of Radius R. What is the magnitude of the electric field at a distance of R/2 from the center of the sphere? What is the magnitude of the electric field at a distance of 2R from th..
A basketball player is standing on the floor 10.0 m from the basket. The height of the basket is H = 3.05 m, and he shoots the ball at an angle, ? = 36.4°, with the horizontal from a height of h = 1.82 m.
A uniform electric field of magnitude 300 V/m is directed in the positive x direction. A +10.0 µC charge moves from the origin to thepoint (x, y) = (20.0 cm, 50.0 cm).
A 60.0 resistor is connected in parallel with a 117.0 resistor, Find the current in the 117.0 resistor and Find the power dissipated in the 117.0 resistor
A vertical cylinder 6 ft tall and 1 ft in diameter might be used to approximate a man for heat-transfer purposes, Calculate the heat lost from the cylinder
The spaceship Lilac, based on the Purple Planet, is 791 m long, as measured at rest. When Lilac passes Earth, Terran observers measure its length to be 733 m.
Two ice skaters, with masses of 30.0kg and 65.0kg , are at the center of a 60.0m -diameter circular rink. If the heavier skater reaches the edge in 40.0s , how long does the lighter skater take to reach the edge
in meters what is the distance of closest approach of the two particles? assume that the gold nucleus remains
an automobiles wheels are locked as it slides to a stop from an initial speed of 30.0 ms. if the coefficient of static
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