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homework 34 - homework 34 NOORANI ZOHEB Latest unpenalized...

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homework 34 – NOORANI, ZOHEB 1 Latest unpenalized work: Apr 21 2008 Mon- day 04:00 (after this date you can not make a perfect score). Work cutoff: Apr 22 2008, 4:00 am. Question 1, chap 16, sect 4. part 1 of 2 10 points A standing wave of frequency 5 hertz is set up on a string 2 meters long with nodes at both ends and in the center, as shown. 2 meters Find the speed at which waves propagate on the string. 1. 5 m / s 2. 0 . 4 m / s 3. 2 . 5 m / s 4. 10 m / s 5. 20 m / s Question 2, chap 16, sect 4. part 2 of 2 10 points Find the fundamental frequency of vibra- tion of the string. 1. 2 . 5 Hz 2. 10 Hz 3. 1 Hz 4. 5 Hz 5. 7 . 5 Hz Question 3, chap 16, sect 4. part 1 of 4 10 points To demonstrate standing waves, one end of a string is attached to a tuning fork with frequency 160 Hz. The other end of the string passes over a pulley and is connected to a suspended mass M , as shown. The value of M is such that the standing wave pattern has three loops “anti-nodes”. The length of the string from the tuning fork to the point where the string touches the top
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