Factor Label Method General Chemistry I and II Lab Manual Dakota State University page 223 of 232 45 36525 24 60 60 30 10 4 3 10 10 18 . * . * * min * sec min * . sec . year day year hour day hour x cm x cm = Now, let's finish up the problem. 43 10 2 54 12 1 200 60 60 24 365 25 20 186000 18 . * . * * sec , * min sec * min * * . * , x cm inch cm ft inch ft hr day hour year day generation year generations = This problem was inspired by an old episode of Star Trek. Example 4: In the last few problems, the starting point has always been the number with one single unit (as opposed to this per that), so here's a problem that is slightly different. The velocity of light (as we've seen) is 3.0x10 10 cm / sec. What is this speed in miles / hour? GIVEN: 3.0x10 10 cm/sec FIND: velocity in miles / hour CONVERSION FACTORS: We'll need 2.54 cm / in, 12 in / ft, 5280 ft / mile, 60 sec / min and 60 min / hour OK, in this case the starting point is pretty obvious, but this won't always be the case. If you're not sure where to start, start anywhere and just work it out. This
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