Physics, 06.07.2019 08:10, almostnevercbbc

1. calculate the work done in raising 120 lb to a height of 15.0 ft. find the work done in raising 250 g a distance of 215 cm.
2. a screw jack has a handle of radius 36 in and thread pitch of .25in. calculate the ima of the jack
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1. calculate the work done in raising 120 lb to a height of 15.0 ft. find the work done in raising 2...