Period = reciprocal of ('1' divided by) the frequency = 1/256 = 0.00390625 second
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The frequency is the reciprocal of the period; in this case, divide 1 / 4x10-7.
T = 1/f T = 1/(50 Hz) = .02 sec
The answer is in the question! 5 Hz Also, a wavelength cannot be 5 cycles - wrong units.
Wavelength = (speed)/(frequency)Frequency = 1/periodso wavelength = (speed) x (period)Speed = (20 meter/min) x (1 min/60 sec) = 1/3 meter/secWavelength = (speed) x (period) = (1/3 meter/sec) x (30 sec) = 10 metersThe correct choice is a .
2.01 seconds.