A coin underwater (left) appears closer than an identical coin in air (right). A tiny fish located next to the coin underwater would see the outside observer:
a. appearing closer than the real distance.
b. appearing farther than the real distance.
c. appearing exactly at the correct distance.
b
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Uncertainty Principle Using Energy and Time: If the maximum possible accuracy in measuring the energy of a particle increases, the maximum possible accuracy in measuring its lifetime will
A. increase. B. decrease. C. not be affected.
A sealed 26-m3 tank is filled with 2000 moles of oxygen gas (O2 ) at an initial temperature of 270 K. The gas is heated to a final temperature of 460 K
The ATOMIC mass of oxygen is 16.0 g/mol, and the ideal gas constant is R = 8.314 J/mol • K = 0.0821 L • atm/mol • K. The final pressure of the gas is closest to A) 0.29 MPa. B) 0.31 MPa. C) 0.33 MPa. D) 0.34 MPa. E) 0.36 MPa.
An 8000 kg satellite is launched from the surface of the earth, and injected into outer space a long distance from the earth. The kinetic energy needed to launch the satellite into outer space is 
A. 
B. 
C. 
D. 
E. 
During each cycle, the compressor in a certain ideal Carnot refrigerator performs 480 J of work to remove 150 J of thermal energy from the interior of the refrigerator
How much thermal energy do the coils behind the refrigerator discharge into the kitchen each cycle? A) 110 J B) 150 J C) 330 J D) 480 J E) 630 J