Underground molten rock material is known as ______________
Fill in the blank(s) with correct word
magma
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In the time between two closest approaches to Earth, Venus rotates almost exactly five times relative to the Sun. The consequence of this is that:
A) Earth always presents the same face to Venus at inferior conjunction. B) Venus always presents the same face to Earth at inferior conjunction. C) Venus presents the opposite hemisphere to Earth at each inferior conjunction. D) Venus presents the opposite hemisphere to Earth at each superior conjunction. E) Venus' rotation is completely unrelated to the distant Earth.
Identical particles are placed at the 50-cm and 80-cm marks on a meter stick of negligible mass. This rigid body is then mounted so as to rotate freely about a pivot at the 0-cm mark on the meter stick. If this body is released from rest in a horizontal position, what is the angular speed of the meter stick as it swings through its lowest position?
a. 4.2 rad/s b. 5.4 rad/s c. 4.6 rad/s d. 5.0 rad/s e. 1.7 rad/s
In contrast to the outer solid mantle, parts of the central regions of Earth's interior are thought to be fluid because
a. P seismic waves cannot make it through those regions b. S seismic waves cannot make it through those regions c. both P and S seismic waves cannot make it through those regions d. both P and S seismic waves easily make it through those regions
The size of Olympus Mons suggests that the crust of Mars is very thick
a. True b. False Indicate whether the statement is true or false