If middle C is 513 hz (which it is not), then A above would be 513*23/4 = 862.8 hz.
The frequencies on which sonar is used vary widely. Human hearing is usually cited as ranging as from 20 cycles per second (Hertz) to 20,000 cycles per second. There are many sonars that use frequencies in the 20 to 20,000 Hertz range. In general, the sonars that are used for short range underwater applications operate on a slightly higher frequency than those that are designed to look over long distances. But there are a lot of sonars which use frequencies far outside the range of human hearing. Medical imaging is the most popular use of sonar. The range of frequencies used by these devices range from 2 million cycles per second to 18 million cycles per second. These frequencies are far above what humans can hear.
It depends which Ab you mean, the Ab note above middle C is approximately 415 Hertz.
Frequency is the number of waves per second, i.e. 20Hz is 20 waves per second. Wavelength is obviously the length of each wave i.e 20m So if there are 20 waves per second, the distance it travels is the length of the wave multiplied by the number of waves in one second. The distance travelled in one second by the wave above is therefore 20 * 20m wich is 400m. The distance travelled in 1 second is 400m. Therefore every second, the wave travels 400m and thus the speed is 400meters per second (400m/s).
That would be 1200 Hz. Every octave is a superposition of the note below it, so the frequency doubles. The octaves above that would be 2400 Hz, 4800 Hz, and so on...
If, for example, the lowest G is the first G below middle C, this G would be in the space below the second ledger line below the stave (with the G clef (treble clef). The next note, A, would be on the second ledger line below the stave, the next note, B, will be in the space below the first ledger line, then middle C, and the notes D, E, F and G (that completes the first octave) will be on consecutive spaces and lines above middle C, so that the G completing the first octave will be on the second line on the stave. The second octave will continue with the A in the second space from the bottom, the B on the line above, and the C, D, E and F will be on the consecutive spaces and lines above. The G that completes the second octave will be in the first space above the stave. Also, both F notes will will have a sharp symbol to the left of them ( like a hash sign), unless this symbol appears after the treble clef symbol at the start of each stave.
The pitch of a sound is the number of vibrations per second the instrument produces. An orchestra is pitched to the A above Middle C which vibrates at 440 cycles per second.
That depends on what kind of a system the local oscillator is part of. In a simple AM receiver, it's typically 455 KHz above the frequency of the incoming signal of interest. In a consumer FM radio, that figure is 10.7 MHz above. In a 'legacy' analog microwave receiver, it's almost always spaced 70 MHz from the received carrier, and since the ubiquitous advent of split-mount digital microwave equipment, with the RF system clamped to the antenna, there's no telling any more ... you always have to look in the book (if that information is even included in the book).
Hertz (Hz). In the US, typical power that comes from wall sockets is 115 V at 60 Hz. One Hertz is "one cycle per second"; it's a basic unit of Frequency. So basically, the power from a wall socket is alternating at the frequency of 60 Hz. Musicians use the A above Middle C as a reference tone, and this note has a frequency of 440 Hz. Humans can hear tones in the range of about 15 Hz to 20,000 Hz. So, if you hooked up your wall power to a speaker (not recommended, obviously), you could hear the frequency.
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.
That is correct. 262 Hz is the frequency of the note "middle C" on a piano keyboard, while 880 Hz is the frequency of the note A one octave above the note A above middle C on a piano keyboard.
wavelength - the distance between the crest (or trough) of one wave, and the crest (or trough) of the next amplitude - the height or depth of the wave above or below the resting position frequency - measured in Hz which is cycles per second. frequency is how often the wave passes a given point. for instance, A.C. electricity in your home cycles at 60 Hz, this means that essentially, electric features in your home are having power cycled to them 60 times a second. a wave passing a given point five times every second would have a frequency of 5 Hz and so on and so forth. Hope this helped!
The frequencies on which sonar is used vary widely. Human hearing is usually cited as ranging as from 20 cycles per second (Hertz) to 20,000 cycles per second. There are many sonars that use frequencies in the 20 to 20,000 Hertz range. In general, the sonars that are used for short range underwater applications operate on a slightly higher frequency than those that are designed to look over long distances. But there are a lot of sonars which use frequencies far outside the range of human hearing. Medical imaging is the most popular use of sonar. The range of frequencies used by these devices range from 2 million cycles per second to 18 million cycles per second. These frequencies are far above what humans can hear.
The pitch is determined by the frequency of the wave.The absolute loudness is determined by the wave's amplitude.The loudness perceived by the ear is affected by both the above, because the sensitivity of the ear is frequency dependent.
In physics, the terms period and frequency are applied to things that repeat or "move in cycles" or "go around" or the like. The period is the amount of time (measured in seconds, minutes, etc.) it takes to perform one complete cycle of the object or thing being observed. The frequency is the rate (in cycles per unit of time) that the cycles are happening in.The A above middle C often used as a reference in music equates to a string on an instrument vibrating at 440 cycles per second. That 440 cycles per second (or 440 Hertz) is the frequencyof the vibration of the string. It also follows that the string will complete one entire cycle of its range of movement in 1/440th of a second. The 1/440th of a second (0.00227272727... seconds) will be the period of that motion.
The lowest note is the G above middle C, and the highest is the A nine notes above that.
According to Wikipedia, the Bb above middle C is roughly about 465 hertz.
It depends which Ab you mean, the Ab note above middle C is approximately 415 Hertz.