Which of the following is true about how the planets revolve around the Sun and how the Sun rotates?
a. There is no pattern to the rotation of all these bodies.
b. The planets all revolve in one direction and the Sun rotates on its axis in the other direction.
c. The planets revolve around the Sun in the same direction that the Sun rotates.
d. The Sun rotates on its axis in the opposite direction from the revolution of the planets and thus angular momentum is conserved.
e. The Sun does not rotate, but the planets all revolve around it in the same direction.
c
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What determines the chemical and physical properties of hydrocarbons?
A) the way the atoms are connected together B) the number of carbon and hydrogens C) the elements it is composed of D) the number of oxygen E) both A and B
Observations indicate that it takes Saturn longer than Jupiter to complete one orbit about the Sun. This is in agreement with which of Kepler's laws?
A. First B. Second C. Third D. Fourth
Find the change in entropy (in J/K) when 5.00 moles of an ideal monatomic gas are allowed to expand isobarically from an initial volume of 20 cm3 to a final volume of 100 cm3.
A. 167 B. 100 C. 67 D. 52 E. 152
Ekapluto is an unknown planet that has two spherical moons in circular orbits. The table summarizes the hypothetical data about the moons. Both moons have low axial spin rates. (G = 6.67 × 10-11 N ? m2/kg2)
Mass Radius Orbital radius Orbital period Moon A 4.0 × 1020 kg 2.0 × 108 m 4.0 × 106 s Moon B 1.5 × 1020 kg 2.0 × 105 m 3.0 × 108 m The acceleration due to gravity at the surface of Moon B is A) 0.10 m/s2. B) 0.15 m/s2. C) 0.20 m/s2. D) 0.25 m/s2. E) 0.30 m/s2.