Building a Water Bottle Xylophone: Calculating Notes Using Physics Equations

[cjmiba324]

Homework Statement

I am now doing my physics project, which is to build an instrument. I choose mine to be glass bottles filled with water and hit them like an xylophone. But our physics teacher requires us to write down the calculation process of finding each note.

Homework Equations

He only taught us the formula frequency(n)=nVelocity/2L. But I think this formula is only used when I blow the bottles not hit them. Should I use this formula to get the notes or is there another formula that I can use?

The Attempt at a Solution

But I think this formula is only used when I blow the bottles not hit them. Should I use this formula to get the notes or is there another formula that I can use?

 

[BvU]

So what have you done with these bottles so far ? Any experimental evidence that the tones are dependent on the water level when you hit the bottles ? Same question for when you blow on the opening ?