Hz = cycles/second, of a periodic phenomenon.
So it depends on what cyclic feature of the train it is that you're trying to measure.
D3 146.8 Hz G3 196.0 Hz B3 246.9 Hz E4 329.6 Hz
2 400 000 000 Hz
1 GHz is equal to 1,000,000,000 Hz.
0.523 kHz is equal to 523 Hz. Just multiply the value in kHz by 1000 to convert it to Hz.
500,000 Hz is equivalent to 500 MHz, as 1 MHz is equal to 1,000,000 Hz. To convert from Hz to MHz, you divide the frequency in Hz by 1,000,000. Therefore, 500,000 Hz divided by 1,000,000 equals 0.5 MHz.
there are going to be at the ear at the same time even a 4th grader would know this
There are 0.001 kHz in 1 Hz. This is because 1 kilohertz (kHz) is equal to 1000 hertz (Hz).
none
A P wave has a frequency range of 0.5 to 20 Hz, with typical frequencies falling between 2 to 8 Hz.
There are 3octaves = 90, 180, 360, 720
650x10^6Hz
A billion.