homework 33

# homework 33 - homework 33 NOORANI ZOHEB Latest unpenalized...

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homework 33 – NOORANI, ZOHEB 1 Latest unpenalized work: Apr 18 2008 Friday 04:00 (after this date you can not make a perfect score). Work cuto±: Apr 19 2008, 4:00 am. Question 1, chap 16, sect 2. part 1 of 2 10 points A steel piano wire is 0 . 7 m long and has a mass of 80 g. It is stretched with a tension of 100 N. What is the speed of transverse waves on the wire? Answer in units of m / s. Question 2, chap 16, sect 2. part 2 of 2 10 points To reduce the wave speed by a factor of 2 without changing the tension, what mass of copper wire would have to be wrapped around the steel wire? Answer in units of g. Question 3, chap 16, sect 2. part 1 of 1 10 points Tension is maintained in a string as in the ²gure. The observed wave speed is 28 m / s when the suspended mass is 3 . 5 kg . The acceleration of gravity is 9 . 8 m / s 2 . 3 . 5 kg What is the wave speed when the suspended mass is 2 kg? Answer in units of m

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homework 33 - homework 33 NOORANI ZOHEB Latest unpenalized...

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