Comets are not actually members of the solar system, but have been captured by the Sun
Indicate whether the statement is true or false
FALSE
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The frictional force of the floor on a large suitcase is least when the suitcase is
a. pushed by a force parallel to the floor. b. dragged by a force parallel to the floor. c. pulled by a force directed at an angle q above the floor. d. pushed by a force directed at an angle q into the floor. e. turned on its side and pushed by a force parallel to the floor.
The wearing away of soil and rock and the subsequent downslope movement of the fragments are called
a. erosion. b. weathering. c. cross-cutting. d. deposition.
•The largest moon in the solar system is
• •(a) the Earth’s moon •(b) Ganymede •(c) Triton •(d) Io
A nylon bar (E 5 2.1 GPa) with diameter 12 mm, length 4.5 m, and weight 5.6 N hangs vertically under its own weight. The elongation of the bar at its free end is approximately:
(A) 0.05 mm
(B) 0.07 mm
(C) 0.11 mm
(D) 0.17 mm
