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OpenStudy (anonymous):
Use dimensional analysis to determine the number of kilograms in 70 pounds. (Hint: 1 kg = 2.2 lbs)
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OpenStudy (anonymous):
70lb * 1kg ---- 2.2lb the lb cancel from top and bottom you are left with (70*1)kg -------- 2.2
OpenStudy (anonymous):
simplify (do the division)
OpenStudy (anonymous):
31.8kg
OpenStudy (anonymous):
Hey bro, you gotta cancel out the units 70lb x (1k/2.2 lbs) = 31.8 kg
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