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A car travels 20 km west, then 20 km south. what is the magnitude of its displacement? A) 0 km B) 20 km C) 28 km D) 40 km
answered
Jun 29, 2017
Physics
high-school
6
votes
157k
views
A cardboard box 6 units high, 4 units wide, and 3 units long can hold 80 pounds of brown rice. A second cardboard box has the same height, twice the width, and the same length as the first box. How many
answered
Mar 15, 2016
Mathematics
middle-school
3
votes
117k
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