Yes, the ringing is caused by vibrations. The pitch is determined by the frequency (measured in hertz) which is how fast the waves alternate up and down. The water blocks the vibrations making them need to travel less up and down the glass, which makes the pitch higher.
Yes, If you put a different type of liquid in a glass it will affect the pitch of the note.
No, it is a highly viscous liquid, do a search on the Pitch Drop Experiment.
It changes the pitch of the voice.
You don't necessarily have to go so high to break a glass, rather it is hitting the exact same frequency of vibration that the glass has. So you would tap the glass to determine the frequency (you need someone with perfect pitch or an analyzer), and then you just have to hit that same note at the right intensity to break the glass.
Doppler effect
A high pitch (> 2 kHz) of a pure tone will be perceived to be getting higher if its loudness is increased, whereas a low pitch (< 2 kHz) will be perceived to be going lower with increased loudness. Sometimes called "Stevens's rule" after an early investigator, this psychoacoustic effect has been extensively investigated Scroll down to related links and look at "Effect of Loudness Changes on Perceived Pitch".
The pitch is governed by the length of the column of air in the bottle, so you can change that by adding or removing a liquid like water. Are you blowing across the top or striking the bottle?
I did a science experiment on this and a full glass was a C# a half full glass was an F# that was out of tune (flat) three fourths full a F that was also out of tune (flat) and a fourth full was a G that was again out of tune (sharp). This isn't exact and the size of the glass matters but this should be close.
Lower sound
Yes. The pitch doesn't necessarily need to be that high, it just needs to be the resonant frequency of the glass, and very, very loud.
doppler effect
Asphalt pitch is a black substance that is used to repair roads. Asphalt pitch is the liquid form of tar.
No, it is a highly viscous liquid, do a search on the Pitch Drop Experiment.
Pitch is a semi-liquid tar that is deep black in color. So the descriptive is pitch black.
Person Pitch was created on 2007-03-20.
yes.if you make the right pitch
The Doppler effect
Some People might consider glass as fluid at room temperature... I believe it's one of the most viscous fluids..