If you have 7 total 100-W light bulbs in a parallel circuit in your basement and you leave them on for 1.5 days, how much energy (in kilowatt hours) would be used?

a. 25.2 kWh b. 1050 kWh
c. 3520 kWh d. 25200kWh


a

Physics & Space Science

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The forces that hold the nucleus together

A) are much stronger than electromagnetic forces. B) act over only very short distances. C) Both of the above. D) are attractive, that is, they pull in the inward direction. E) All of the above.

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Suppose we hold a sample of helium gas at a constant temperature while we slowly compress it in a cylinder until its volume has decreased by a factor of 4. During this process, the gas’s entropy

A. increases. B. decreases. C. remains the same. D. Does something else (specify).

Physics & Space Science

There is a magnetic force on a particle. It is possible that the particle is:

a. uncharged. b. stationary. c. moving in the direction of the magnetic field. d. not part of a wire.

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A 0.16 pF parallel-plate capacitor is charged to 10 V. Then the battery is disconnected from the capacitor. When 1.00 × 10^7 positive charges of magnitude |e| are now placed on the positive plate of the capacitor, the voltage between the plates changes by

a. ?5.0 V. b. ?1.1 V. c. 0 V. d. +1.1 V. e. +5.0 V.

Physics & Space Science