URGENT PLZ REPLY FAST!!!! PHYSICS PROBLEM?

RoxyBrunette

New member
Plz help if you can fast!! These are my questions:

Standing waves can be set up
a) on strings of musical instruments
b) in pipe organs
c) blowing across the mouth of a bottle
d) all of the above

Some of the waves energy is dissiapted in different forms of energy this will affect the waves
a) frequency
b) wavelength
c) amplitude
d) period

The source of a wave is a
a) regions of variable low and high pressure
b) movement of matter
c) vibration
d) movement of particles
 
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