Hw Solution #11

# Hw Solution #11 - Bell Evan – Homework 10 – Due 11:00...

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Unformatted text preview: Bell, Evan – Homework 10 – Due: Mar 31 2005, 11:00 pm – Inst: Furlan 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points Consider the sinusoidal wave pictured in the figure. 6 m 1 m y x O Which of the following equations describes the wave. 1. y = (1 m) cos ( x + (6 m)) 2. y = (1 m) sin ( x- (6 m)) 3. y = (1 m) sin ( x + (6 m)) 4. y = (1 m) cos µ 2 π x (6 m) ¶ 5. y = (1 m) sin µ x (6 m) ¶ 6. y = (1 m) cos ( x- (6 m)) 7. y = (1 m) sin µ 2 π x (6 m) ¶ correct 8. y = (1 m) sin (2 π x (6 m)) 9. y = (1 m) sin µ x (6 m) + π ¶ 10. y = (1 m) cos (2 π x (6 m)) Explanation: The most general form of the static sinu- soidal wave is y = A sin ( kx + φ ) which can be rewritten, y = A sin µ 2 πx λ + φ ¶ where A = amplitude λ = wavelength φ = phase shift From the figure, one can see A = 1 m, λ = 6 m and φ = 0. Thus, y = (1 m) sin µ 2 π x (6 m) ¶ is the only correct answer. 002 (part 1 of 1) 10 points 15 waves crash onto a beach every 43 . 6 s....
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Hw Solution #11 - Bell Evan – Homework 10 – Due 11:00...

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