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OpenStudy (anonymous):
a sound wave has a period of .04 seconds and an amplitude of 4 units. sketch a graph of the sound wave
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OpenStudy (experimentx):
y = 4 sin(2pi/0.04 x) http://www.wolframalpha.com/input/?i=graph+y+%3D+4+sin%282pi%2F0.04+x%29 put 4 at the front and 0.04 at the bottom inside sine function
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