The Logic Off Topic list

DbbBrook@... wrote:

>Hi ya EVERY BODY.
>
>The equipment has been set up to compare the physical interactions of two
>sound waves at different freq.: Two generators (A+B) are fed to both an
>oscilloscope and a loud speaker via switch box enabling each to be viewed and
>heard either separately or combined.
>
>
>AMPLIFIER OSCILLOSCOPE             A         B
>      [     [ [                       \   /
>      [     [ [_____________[    ] wall
>      [ [_________________________________[     ]  (suppose to be box)
>      [__________________________//
>                                                    //
>( I tried to above to draw a diagram, to see if it would help any one better
>- I know not very good, but at least I tried) WEEEEE! Don't give up my
>studies for Art drawing HE HE
>
>DOES ANY ONE KNOW HOW TO WORK OUT THE CALCULATIONS FOR:
>
>The period output A as shown on the Oscillator is: 10 ms (milli seconds or
>metres per seconds)?
>
>The period output B as shown on Oscillator is: 0.1ms
>
>I need to calculate the output freq. for each tone generator and the
>resultant waveform of each sound wave at room temp?

Output frquency in Hertz is the inverse of the period in Seconds.
F= 1/period,  if period is 0.1 ms then F=1/0.0001 = 10,000 Hz or 10 KHz

I can only imagine that you need to graph the pressure wave if you are
considering room temperature. I believe the velocity of sound is approx
320 Metres per second  at 20 degrees C (no idea in imperial) in air.
You may need to find a more accurate figure. In any case, Wavelength in
Metres is equal to velocity/period.

>0.1 ms I think is 0.010s?  I know anything with nought on left from decimal
>point. Oh I'm getting confused. Does any one know how to do this calculation?
>If so can you explain it to me.

1 millisecond (mS) is one thousandth of a second or 0.001 seconds
>
>I am awaiting fro books to come through from book stores and libraries, but
>need to do this formula by Wednesday.

Hope I'm not helping you with your physics homework ;)

S.