Consider the following quantum state vector: 
Which of the following q-vectors is physically equivalent to the vector 
?
A. 
B. 
C. 
D. 
E. None of the above
D.
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Which of the following years had the least sunspot activity?
A) 1930 B) 1949 C) 1961 D) 1987
Venus' lack of magnetic field means that:
A) there is no lightning on Venus. B) the surface of Venus has no protection from the Sun's radiation. C) it doesn't have a liquid metallic core. D) Venus' upper atmosphere is permanently ionized. E) there are constant aurorae everywhere on Venus.
The mass of 1H is 1.007825 u and the mass of 1n is 1.008665 u. The mass of 12C is 12.000000 u, of 13N is 13.005739 u, and of 14N is 14.003074 u. What is the binding energy of the last neutron in 14N?
A) 10.6 MeV B) 9.8 MeV C) 1.9 MeV D) 2.5 MeV E) 3.8 MeV
A tuning fork has a frequency of 300 Hz and hence a period of 3.33 × 10^?3 s. If the tuning fork is in an inertial frame of reference moving by the observer at speed of 0.620 c, what is the frequency of the fork as measured by the observer? (Assume that measurements are strictly by optical means and that the speed of sound waves in air is not pertinent here)
a. 235 Hz b. 382 Hz c. 185 Hz d. 185 Hz e. 487 Hz