In order to remain stable, a star must have an internal balance between
A) gravity and pressure.
B) gravity and temperature.
C) temperature and pressure.
D) pressure and nuclear fusion.
E) nuclear fusion and chemical reactions.
A) gravity and pressure.
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Lobate scarps are believed to have formed on the moon when its interior cooled and shrank
Indicate whether the statement is true or false
Ideal Gas Law: A balloon originally has a volume of 1.0 m3 when the gas in it is at 20°C and under a pressure of 1.0 atm. As it rises in the earth's atmosphere, its volume expands. What will be its new volume if its final temperature and pressure are -40°C and 0.10 atm?
A. 2.0 m3 B. 4.0 m3 C. 6.0 m3 D. 8.0 m3
Which type of feature is the best evidence of lunar volcanism?
A) Rays around the latest eruptions B) Craters all over the Moon C) Vents seen erupting in the mountainous highlands D) Rilles associated with lava flows accompanying the mare formation E) The Orientale Basin
Why does a small error in t produce a greater error in determining g than a small error in d?