If a metal had a Fermi level (energy) of 5.0 eV, what would be the average energy of the electrons at 0 K?
A) 5.0 eV B) 3.0 eV C) 8.0 eV D) 6.0 eV E) 0.00 eV
B
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All except one of the following require the application of a net force. Which one is the exception?
A. Changing an object from a state of rest to a state of motion B. Maintaining an object in uniform circular motion C. Changing an object's speed without changing its direction of motion D. Changing an object's direction of motion without changing its speed E. Maintaining an object in motion at a constant velocity
If you swing a bucket of water fast enough in a vertical circle, at the highest point the water does not spill out because an outward force balances the pull of gravity on the water
A) True B) False
In both fission and fusion, mass
A) is created from energy of other forms. B) converts to kinetic energy. C) converts to gamma radiation. D) remains the same.
On a two-lane highway (not divided), a car headed north experiences a centripetal acceleration directed toward the west. Simultaneously, a truck passes the car, headed south in the other lane. The direction of the centripetal acceleration on the truck is
A. north. B. east. C. south. D. west.