A diatomic molecule is vibrating in the v = 1 quantum state with a frequency of 2.0 × 1013 Hz
What is its vibrational energy? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A) 0.12 eV B) 0.17 eV C) 0.041 eV D) 0.083 eV
A
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By locating the north celestial pole (NCP) in the sky, how can you determine your latitude?
A) The altitude of the NCP is the same as your latitude. B) The altitude of the NCP is your angular distance from the North Pole. C) The azimuth of the NCP is the same as your latitude. D) The azimuth of the NCP is the angular distance from the North Pole. E) The altitude of the NCP is the same as your distance from the North Pole.
At the event horizon, time stops
Indicate whether the statement is true or false
What is the length of the shortest pipe closed on one end and open at the other end that will have a fundamental frequency of 0.060 kHz on a day when the speed of sound is 340 m/s?
A) 1.24 m B) 1.42 m C) 2.14 m D) 4.12 m
Size of the Nucleus: A proton is projected at a stationary 
Ra aluminum target. The proton momentarily comes to a halt at a distance from the center of an aluminum nucleus, equal to twice the nuclear radius. Assume that the nucleus retains its spherical shape and that the nuclear force on the proton is negligible. The initial kinetic energy of the proton, in MeV, is closest to:
A. 8.7 MeV. B. 5.8 MeV. C. 2.9 MeV. D. 13 MeV. E. 17 MeV.