Molecular Rotation: A diatomic molecule has 2.6 × 10-5 eV of rotational energy in the L = 2 quantum state. What is its rotational energy in the L = 1 quantum state? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A. 3.4 × 10-6 eV
B. 5.3 × 10-6 eV
C. 7.8 × 10-6 eV
D. 8.7 × 10-6 eV
Answer: D
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Time Dilation: As measured in Earth's rest frame, a spaceship traveling at 0.9640c takes 10.5 y to travel between two planets that are not moving relative to each other. How long does the trip take as measured by someone on the spaceship?
A. 2.79 y B. 6.82 y C. 39.5 y D. 28.8 y
A key clue to how the solar system formed is the observation that all the planets orbit close to the same plane
Indicate whether the statement is true or false
The slope of a distance vs. time graph is the __________
Fill in the blank(s) with correct word
A current in a long, straight wire produces a magnetic field. The magnetic field lines:
a. go out from the wire to infinity. b. come in from infinity to the wire. c. form circles that pass through the wire. d. form circles that go around the wire.