intensity of circular waves

dimanche 13 juillet 2014

1. The problem statement, all variables and given/known data



when a stone is thrown to position O (in a pond), a wave is generated and the wave eventually spread out form the center, my question is will the amplitude of particle of A, B and C change?

the wave intensity is I=

0.5m(w^2)(a^2)s^-1/ 2 pi r



so i have i got I is directly propotional to (a^2)/ r



as the r change , a change as well , but I change as well .



can i say that the a and r are not changed in the same ratio from position A to C ?



so this cause the intensity of A , B and C to change?







2. Relevant equations







3. The attempt at a solution




Attached Images





File Type: jpg IMG_20140713_062452.jpg (66.2 KB)







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