In the figure,a constant external force P = 160 N is applied to a 20.0-kg box,which is on a rough horizontal surface.While the force pushes the box a distance of 8.00 m,the speed changes from 0.500 m/s to 2.60 m/s.The work done by friction during this process is closest to 
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Securities Exchange Act of 1934
A U.S. federal law that regulates the secondary trading of securities (stocks, bonds, and debentures) in the stock market.
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