A perpetual motion machine of the first kind
A. violates the first law of thermodynamics
B. would be a good investment
C. violates the second law of thermodynamics
D. violates the zeroth law of thermodynamics
A. violates the first law of thermodynamics?
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At which is the potential smallest?
A. A B. B C. C D. D E. E F. None of the labeled points
Consider the function ? (x) = Ax 2 + B, where A and B are constants. Is this function a possible quantum wave function under the right circumstances?
A. Yes. B. Yes, but only for certain values of A and B. C. Yes, but only if A and B are complex. D. Yes, if B is zero. E. No.
The object in a ray diagram is perpendicular to the principal axis but does not have one end lying on the principal axis. The minimum number of rays that must be drawn in this ray diagram in order to determine the position of the image is
A. 1. B. 2. C. 3. D. 4. E. 5.
A 12,000-N car is raised using a hydraulic lift, which consists of a U-tube with arms of unequal areas, filled with oil and capped at both ends with tight-fitting pistons
The wider arm of the U-tube has a radius of 18.0 cm and the narrower arm has a radius of 5.00 cm. The car rests on the piston on the wider arm of the U-tube. The pistons are initially at the same level. What is the initial force that must be applied to the smaller piston in order to start lifting the car? For purposes of this problem, neglect the weight of the pistons. A) 727 N B) 926 N C) 2900 N D) 3330 N E) 1.20 kN