A bird sitting in a tree moves about 30 km/s relative to the Sun. If the bird takes 1 second to drop to a worm below, logic may tell us that the worm would be 30 km downrange from the bird as it reaches the ground. This doesn't happen, thanks to Newton's
A. three laws of motion.
B. law of gravity.
C. law of inertia.
D. none of the above
Answer: C
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Minerals are ____________________ ___________________, because they are solids with orderly arrangements of
atoms in three-dimensional networks. Fill in the blank(s) with the appropriate word(s).
Captain Cook was the first scientist to drift in the Arctic ice pack and proved no Arctic continent existed
Indicate whether the statement is true or false
Which of the following materials has the highest specific heat?
A. Oceanic crust B. Continental crust C. Water D. Air E. None of these is correct.
The atmospheric layer in which gases do not maintain a uniform composition is the ________
A) ionosphere B) homosphere C) troposphere D) heterosphere E) stratosphere