ch16-p056 - 56. Reference to point A as an anti-node...

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56. Reference to point A as an anti-node suggests that this is a standing wave pattern and thus that the waves are traveling in opposite directions. Thus, we expect one of them to be of the form y = y m sin( kx + ω t ) and the other to be of the form y = y m sin( kx ω t ). (a) Using Eq. 16-60, we conclude that y m = 1 2 (9.0 mm) = 4.5 mm, due to the fact that the amplitude of the standing wave is 1 2 (1.80 cm) = 0.90 cm = 9.0 mm. (b) Since one full cycle of the wave (one wavelength) is 40 cm, k = 2 π/λ ≈ 16 m 1 . (c) The problem tells us that the time of half a full period of motion is 6.0 ms, so
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This note was uploaded on 04/16/2011 for the course PHYSICS 191262 taught by Professor Najafzadeh during the Spring '09 term at The Petroleum Institute.

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