A neutral ?0 (having mass 0.642 u) that is at rest decays into two gamma ray photons. What is the energy in MeV of each photon? (1 u = 931.5 MeV/c2)
A) 597 MeV B) 299 MeV C) 1190 MeV D) 149 MeV E) 199 MeV
B
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In what range of masses are most stars found?
A) 0.01 to 100 solar masses B) 1 to 3 solar masses C) 0.1 to 100 solar masses D) 0.1 to 2 solar masses E) Stars can have any mass.
The rate at which the temperature decreases with altitude is called the ______________
Fill in the blank(s) with correct word
A certain molecule has 2.00 eV of rotational energy in the l = 1 state. In the l = 4 state, what would its rotational energy be?
A) 30.0 eV B) 32.0 eV C) 20.0 eV D) 8.00 eV E) 16.0 eV
When a wheel is rolling without slipping, the magnitude of its velocity relative to the ground is greatest at
a. the point in contact with the ground. b. the point at the center of the wheel. c. the point at the top of the wheel opposite to the point in contact with the ground. d. the point farthest forward from the center of mass of the wheel. e. the point farthest behind the center of mass of the wheel.