At the same time an ice cube drops vertically another ice cube slides off the edge of a table. Which ice cube hits the floor first?
A. The sliding one.
B. The dropped one.
C. both hit at the same time
D. none of the above
Answer: C
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Burl and Paul have a total weight of 1300 N. The tensions in the supporting ropes of the scaffold they stand on add to 1700 N. The weight of the scaffold itself must be
A. 600 N. B. 400 N. C. 800 N. D. 500 N.
Analyze the timeline shown. Which letter most likely represents when Earth formed?
Migration incorporates which of Ullman's essential conditions of spatial interaction?
A. transferability B. complementarity C. intervening opportunity D. all of these
List three economic materials that can be profitably extracted from placer deposits
A) Gold, platinum, and tin B) Diamonds, iron, and quartz C) Sand, gravel, and silt D) Granite, basalt, and gabbro