Raising the temperature of air will
1.decrease the speed of sound in the air.
2.increase the speed of sound in the air.
3.not affect the speed of sound in the air.
4.sometimes increase and sometimes decrease the speed of sound in air.
2
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Why do the jovian planet interiors differ?
A) Accretion took longer further from the Sun, so the more distant planets formed their cores later and captured less gas from the solar nebula than the closer jovian planets. B) They differ due to giant impacts at the late stages of planet formation. C) The more distant planets had longer to form than the closer planets, since the solar nebula lasted longer at greater distances from the Sun. D) The more distant planets formed in a cooler region of the solar nebula and therefore contain a greater proportion of ices than the closer jovian planets.
Compared to the ________ planets the ________ planets have ________.
A. terrestrial; Jovian; many satellites B. Jovian; terrestrial; low density C. terrestrial; Jovian; small diameter D. Jovian; terrestrial; high escape velocity
Which type of binary can have their sizes measured directly by photometry?
A) virtual B) visual C) eclipsing D) spectroscopic E) astrometric
At higher altitudes it takes ________ time to bring water to a boil on a stove
A) more B) less C) the same