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Unformatted text preview: yindeemark (rry82) – Homework 13 – chelikowsky – (59005) 1 This print-out should have 7 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points When a particular wire is vibrating with a fre- quency of 5 . 2 Hz, a transverse wave of wave- length 25 cm is produced. Determine the speed of wave pulses along the wire. Answer in units of m / s. 002 10.0 points The red light emitted by a He-Ne laser has a wavelength of 633 nm in air and travels at 3 . 00 × 10 8 m/s. Find the frequency of the laser light. Answer in units of Hz. 003 10.0 points While waiting for Stan Speedy to arrive on a late passenger train, Kathy Kool notices beats occurring as a result of two trains blowing their whistles simultaneously. One train is at rest and the other is approaching her at a speed of 12 . 4 km / h. Assume that both whistles have the same frequency and that the speed of sound is 344 m / s....
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This note was uploaded on 07/07/2010 for the course PHY 302 taught by Professor Staff during the Summer '08 term at University of Texas at Austin.
- Summer '08