A battery is rated at 12. V and 160. A ? h. How much charge does the battery store?
What will be an ideal response?
5.76 × 105 Coulomb
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An uncharged spherical conducting shell surrounds a charge ?q at the center of the shell. The charges on the inner and outer surfaces of the shell are, respectively,
A. ?q, ?q. B. ?q, +q. C. +q, ?q. D. +q, +q. E. +q, 0.
Suppose an automobile's fuel could be made to burn hotter without harming the engine's operation. Would you still get the same amount of useful work from each gallon of gasoline?
A) It wouldn't make any difference, because the efficiency is related only to the amount of input energy, and not to the temperature of this energy. B) You would get more work, because heat engines are more efficient at converting chemical energy into thermal energy when the temperature is higher. C) You would get more work, because heat engines are more efficient at converting thermal energy into work when the input temperature is higher. D) You would get less work, because heat engines run less efficiently when the input temperature is higher. E) You would get less work, because less chemical energy would be used at the higher temperature.
Venice italy provides a dramatic example of ____ because of heavy ground water withdrawals
A) water table depletion B) building damage C) ground subsidence D) ground water contamination E) transportation
The gravitational force that the Earth exerts on the Moon is equal and opposite to that which the Moon exerts on the Earth. Therefore, according to Newton's second law of motion,
A) the Moon and the Earth both have equal accelerations, because the forces are equal. B) the Moon has a larger acceleration than the Earth, because it has a smaller mass. C) the Earth has a larger acceleration than the Moon, because it has a larger mass.