Respostas

2014-07-17T11:17:37-03:00
V = 2piR/T

T = 24horas = 86400 segundos

R = 6*10^6m
Pi = 3

V = 2*3*6*10^6 / 86.400
V = 36.000.000/86400

V = 416,7m/s = ~ 1500km/h
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