Ответ:
v = 2pR / T ⇒ T = 2pR / v = 6.28*10 / 12.56 = 5с
n = 1/T = 1/5 = 0.2 Гц
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Ответ:
v = 2pR / T ⇒ T = 2pR / v = 6.28*10 / 12.56 = 5с
n = 1/T = 1/5 = 0.2 Гц