A stone whirled at the end of a rope follows a circular path. If the rope breaks, the stone tends to
A. follow a straight-line path.
B. spiral inward.
C. continue in a circular path.
D. fall straight downward.
Answer: A
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The Maldive Islands are in immediate danger from global climate change because
A) the coral reefs, which are their major tourist attraction, are dying. B) the islands have a mean elevation of three feet above sea level. C) the islands are constantly damaged by hurricanes generated by warmer sea water. D) increased rainfall has flooded much of the agricultural land.
In the solid state called ice, the shape and charge of water molecule helps arrange the molecules into ____ crystals
a. three-sided (trigonal) b. four-sided (tetragonal) c. five-sided (pentagonal) d. six-sided (hexagonal) e. eight-sided (octagonal)
Which are true of faults?
A) A lateral fault may result from horizontal compression. B) Orientation of a fault depends on directions of stresses. C) Vertical compression may result in a more vertically oriented fault. D) These are all true of faults.
Air masses are reluctant to mix because of
A) wind direction. B) clouds. C) density differences. D) precipitation.