Respostas

2014-03-23T15:57:07-03:00
Multiplique por 3,6

900:3,6=250m/s
300X3,6=1080km/h
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2014-03-23T15:58:50-03:00
900 km/h / 3,6 = 250 m/s
300 m/s x 3,6=1080 m/s
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