Which of the following substances would conduct electricity the best?
A. an acid that dissociates (dissolves) 100%
B. an acid that dissociates (dissolves) 80%
C. an acid that dissociates (dissolves) 50%
D. an acid that dissociates (dissolves) 10%

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15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?