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During a lightning flash, there exists a potential difference of Vcloud - Vground = 1.7 x 109 V between a cloud and the ground. As a result, a charge of -30 C is transferred from the ground to the cloud.
(a) How much work Wground-cloud is done on the charge by the electric force?
(b) If the work done by the electric force were used to accelerate a 1100-kg automobile from rest, what would be its final speed?
(c) If the work done by the electric force were converted into heat, how many kilograms of water at 0 °C could be heated to 100 °C?
The current in a long solenoid of 95 turns generates a magnetic flux within it of 65.0 mWb per turn. what will be the induced emf
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The top of a refrigerator has an area of 0.6m2. The height of the refrigerator is 180 cm. What volume does refrigerator occupy in cubic meters.
A short train (an engine plus four cars) is accelerating at 1.40 m/s^2 . The mass of each car is 3.70×104 kg, and each car has negligible frictional forces acting on it. What is the force of the engine on the first car
Two identical conducting spherical shells S1 and S2 carry charges Q1 and Q2, respectively, Determine the total charge on S1 and S2 after they are separated
What is the maximum speed with which a 1200- car can round a turn of radius 71 on a flat road if coefficient of static friction between tires and road is 0.45.
What did Newton discover about gravity? 1. All objects near the Earth free fall with the same acceleration. 2. Any force on a planet would be directed along its path. 3. Gravity only happens on Earth.
While taking a walk around your neighborhood, you see a flash of lightning hit the Earth in the distance. How far away did the lightning strike the ground
Two bullets have masses of 2.9 gand 4.2 g, respectively. Each is fired with a speed of 42.0m/s. What is the kinetic energy ofthe first bullet?
An ?-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. find the magnitude of the magnetic force on it
A dielectric having dielectric constant ? = 3.2 is now inserted in between the plates of the capacitor as shown. What is the charge on the top plate of this capacitor
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