A given amount of heat energy can be completely converted to mechanical energy in
A) a steam engine.
B) an atomic reactor.
C) a simple machine.
D) all of the above
E) none of the above
Answer: E
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The principal quantum number can have any integer value ranging from
A) -? to +?. B) 0 to ?. C) 1 to ?. D) 1 to n. E) 1 to 100.
The horizontal surface on which the objects slide is frictionless. If M = 1.0 kg and the magnitude of the force of the small block on the large block is 5.2 N, determine F.
A. 6.0 N B. 9.0 N C. 7.8 N D. 4.8 N E. 4.1 N
A piece of wood is floating in a bathtub. A second piece of wood sits on top of the first piece, and does not touch the water. If the top piece is taken off and placed in the water, what happens to the water level in the tub?
A) It goes down. B) It does not change. C) It goes up. D) This cannot be determined without knowing the volume of the top piece of wood.
The volume of water that flows past a given point in a channel during a specified time is called
A) load. B) gradient. C) discharge. D) runoff.