Kepler's second law of planetary motion states "A line from a planet to the Sun sweeps over equal areas in equal intervals of ____."
a. time
b. space
c. arcs
d. ellipses
e. spheres
a
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First Law of Thermodynamics: A sealed rigitd tank contains 30 moles of an ideal gas, at an initial temperature of 270 K. The pressure of the gas is increased until the final pressure equals 1.40 times the initial pressure. The heat capacity at constant pressure of the gas is 32.0 J/mol ? K. What is the change in the internal (thermal) energy of the gas during this process? (R = 8.31 J/mol ? K)
A. 77 kJ B. 100 kJ C. 130 kJ D. -50 kJ E. -23 kJ
A quasar in a galaxy that is merging with another galaxy would be
A) the source of a gamma ray burst. B) less luminous because of the loss of material to tidal debris during the merger. C) more luminous because of a greater supply of fuel. D) destroyed in the process of the merger. E) the source of a Type Ia supernova explosion.
When the bottom string is pulled slowly in the heavy-ball-and-strings demonstration (Figure 1.7 in your text), tension
A) in the top string is due to your pull plus the weight of the ball. B) is about the same in both strings. C) in the bottom string is zero. D) none of the above
The Pauli Exclusion Principle states
a. no two electrons in the same atom can have the same set of quantum numbers. b. there is an inherent uncertainty in the position and momentum of a particle. c. when an atom has orbitals of equal energy, the maximum number of electrons will have unpaired spins. d. when an atom has orbitals of equal energy, the maximum number of electrons will be paired spins. e. no two atoms can have the same set of quantum numbers.