440 Hz = 440 s^(-1) =
2.272... x 10^(-3) s
Hence in one minute .
2.272... x 10^)-3) x 60 = 0.13536346.... min
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Period is 1/440s = 0.00227 to 3 significant figures.
In the old days, a cycle was is now a hertz(Hz). So 1 kilocycle=1000 Hz. Now the "M" means 1 million or 1*10 to the sixth power. 101 MHz=101 million cycles per seconed or 101 million Hz per seconed or 101 million vibrations per seconed.
No. One per second.
Frequency = 75 Hz. Speed = 45 m/s
since v=f(lambda), where v is the speed in metres per second, f is the frequency in hertz and lambda the wavelength in metres , for this question, v= 440 x 1.5=660m/s