Period is 1/440s = 0.00227 to 3 significant figures.
The period of an 8000 Hz sine wave is 0.125 milliseconds. (1/8000)
Frequency = reciprocal of period = 1/P = 1/0.008 = 125 Hz.
Period = 1 / frequency = 0.001 second.
0.02
4 Hz
440 cycles per second. 1 Hz = 1 cycle per second
You want to tune a guitar's 'A' string to 440 hz.
For 440 Hz: λ = about 423.37 miles.
440 Hz, 660 Hz, and 880 Hz.
440 everyones tuners are too
Higher notes have higher frequencies. A typical tuning fork vibrates at 440 Hertz. That's the tone of the A above middle-C on a piano. The A one octave higher is 880 Hz (2 x 440 Hz). The A one octave above that is 1760 Hz (2 x 880 Hz). The A below middle-C is 220 Hz (440 Hz ÷ 2), the next lower A is 110 Hz, and so on. The lowest note on a piano is 27½ Hz, and the highest is 4186 Hz.
100
When a 440 Hz sound is sent through steel, a wavelength of 11.6 meters is measured. What is the velocity of the sound through steel
Absolutely 440 Hz is the frequency of the A note that is 1½ steps below middle C, the top line of the bass clef. 880 Hz is the frequency of the A note one octave higher, the second space from the bottom of the treble clef. On a piano, if you slam hard on the lower of those two A keys and just lightly press the higher one, the 440-Hz sound will be louder than the 880-Hz sound. The loudness, or amplitude, of a sound wave has to do with how tightly the air molecules (or the molecules of whatever the sound-propagating medium is) are packed in each wave of the sound, while the sound's frequency or pitch has to do with how frequently the waves are generated (440 times per second in the case of a 440-Hz sound), or how far apart the waves are (frequency is inversely proportional to wavelength).
The frequency is the reciprocal of the period. 1 / 10 Hz. = 0.1 seconds.The frequency is the reciprocal of the period. 1 / 10 Hz. = 0.1 seconds.The frequency is the reciprocal of the period. 1 / 10 Hz. = 0.1 seconds.The frequency is the reciprocal of the period. 1 / 10 Hz. = 0.1 seconds.
That all depends on which A you're referring to. The first note, at the lowest pitch on the piano is known as Ao, and is 27.5 Hz The next one up the keyboard is A1, andis 55.0 HZ A2 is 110.0 Hz, A3 is 220.0 Hz, A4 (A above middle C) is 440.0 Hz, A5 is 880.0 Hz, A6 is 1760.0 Hz, A7 is 3520.0 Hz.
The period is the reciprocal of the frequency. If the frequency is in Hz, the period is in seconds.