If the average kinetic energy of a volume of ideal gas increases, what must be true?
A. the density decreases
B. the pressure increases while the temperature stays the same
C. the temperature increases while the pressure stays the same
D. both the pressure and temperature increase
D. both the pressure and temperature increase
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The largest Jovian moon that appears to have been captured is
A) Titania, the moon of Uranus B) Io, the moon of Jupiter C) Triton, the moon of Neptune D) Titan, the moon of Saturn
The solar nebula theory is NOT able to explain which of the following observed characteristics of the solar system? Another theory would be needed
a. Common direction of rotation of the planets. b. Common direction of revolution of the planets. c. The formation of hydrogen atoms in the solar system from subatomic particles. d. The density of the Jovian planets.
Some anthropological evidence for the precession of Earth's tilt is that the passage into the Great Pyramid in Egypt points at the star Thuban, which was the polestar about 6,000 years ago.
Answer the following statement true (T) or false (F)
Carla and Jenny are arguing about whether or not it is possible to escape the gravitational field of the Earth. Carla shows Jenny a system where mass m is rE (not the Earth's radius) distant from Earth and rP (not planet P's radius) distant from planet P, the mass being on the line connecting the Earth and planet P. Carla states that the mass m has escaped if FP on m = ?FE on m. Jenny
disagrees. Which one, if either, is correct, and why? a. Carla, because the total gravitational force on m is zero at that point. b. Carla, because there is no gravitational force from Earth on m at that point. c. Carla, because there is no gravitational force on m from Earth when r > rE. d. Jenny, because there is a gravitational force on m from Earth no matter how great the distance from the Earth. e. Jenny, because the gravitational force from the Earth can only be blocked by a body that is larger than the Earth.