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A metal sphere of radius 19 cm has a net charge of 6.0 10-8 C.
(a) What is the electric field at the sphere's surface?
(b) If V = 0 at infinity, what is the electric potential at the sphere's surface?
(c) At what distance from the sphere's surface has the electric potential decreased by 650 V?
A light bulb is connected to a 260V potential, and produces 120-Watts of light and heat. What is the resistance of the wire in the light bulb and how much current does it sends through the heart
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question two capacitors are connected in parallel across the terminals of a battery. one has a capacitance of 2.0
Two Train cars are on a smooth level track. Car 1 has an initial mass of 10,000 kg and an initial speed of 18 m/s. what is the speed and kinetic energy of the connected cars after the collision
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A rotating door is made from four rectangular glass panes, estimate the magnitude of the door's angular acceleration
Each tire on a car has a radius of 0.330 m and is rotating with an angular speed of 15.5 revolutions/s. Find the linear speed v of the car
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A boat moves through the water of a river at 10-m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 1.6-m/s.
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a bright object and a viewing screen are separated by a distance of 79.4 cm. at what locations between the object and
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