| 4 | 30 | 34 | Sp1 | Sp2 |
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Answers to even problems |
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| 4. As you can
see, the wave shifts 2.4 m to the right at t = 2 seconds .
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| 30. (a) v(1.6 m, 0.2 sec) = -1.51 m/s a(1.6 m, 0.2 sec) = 0 (b) :  |
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| 34. v = 3.00 cm/s d = vt = 30.0 cm. The wave moves in the +x direction. |
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| Sp1. See the absolutely exquisite hint. A = 11.18 units and phase angle = -63.43 degrees or 296.6 degrees. Either way you want to say it, , the angle is in the 4th quad. | ||||
| Sp2. (a) y = (0.200 mm) sin(16.03·x - 3142·t). Note that the units of y are in mm, but the units of k are m-1. That's because the units of x are in m. Interesting.... Also, you might want to ask yourself how I got 3142. Anybody have an answer ?? (b) Tension = 158 N. |
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