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50 J of work was performed in 20 seconds. How much power was used to do this task? A. 4 W B. 24.5 W C. 0.4 W D. 2.5 W
asked
Feb 13, 2019
Physics
high-school
2
answers
3
votes
157k
views
Why did South Carolina repeal nullification in 1832?
asked
Jun 9, 2018
Social Studies
middle-school
2
answers
5
votes
89.3k
views
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