Precession is the slow change in direction of Earth's rotation axis due to the gravitational interaction of the Sun and of the Moon with Earth's equatorial bulge.
Answer the following statement true (T) or false (F)
True
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Free Fall: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming negligible air resistance?
A. 20 m B. 30 m C. 50 m D. 70 m
In a spectroscopic binary, if a pair shows a combined set of lines tonight, but a maximum split two nights later, its orbital period must be
A) one day. B) two days. C) four days. D) eight days. E) twelve days.
A gas that expands adiabatically
1.experiences no temperature change. 2.has no work done on it and does no work. 3.experiences no change in internal energy due to energy transfer by heat 4.increases in temperature.
By what factor is the capacitance of a metal sphere multiplied if its volume is tripled?
1.3 2.31/3 3.1 4.3-1/3 5.13