Question
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Class Management Help HW-13 Waves Begin Date: 3/20/2018 12:00:00 AM--Due Date: 4/29/2018 11:59:00 PM End Date: 6/29/2018 12:00:00 AM (800) Problem 13: A transverse wave traveling on a Slinky® that is stretched to a total length of 2.5 m takes 0.55 s to travel the length of the Slinky and back again. ? 33% Part (a) What is the speed ofthe wave, in meters per second? Grade Summary Deductions Potential Late work % 80% Late Potential 80% 0% 100% cotan0 asin acos0 atan acotan0 sinh0 cosh0 tanh0 cotanh) e Degrees Radians Submissions Attempts remaining 0 (3% per attempt) detailed view I give up! Submit Hint Hints: 2% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback 33% Part (b) Us ing the same slinky stretched to the same length, a standing wave is created which exhibits of three antinodes and four nodes. At what frequency, in hertz, must the Slinky be oscillating? ??3300 Part (c) of this Slinky is 270 g, what is the "effective tension", in newtons? Since a Slinky can have traveling transverse waves on it, we can define a tension in it as if it were a string. If the total mass
Explanation / Answer
Solution:
(a) given d = 2.5m and t = 0.55 s
v = d/t = 2.5/0.55 = 4.54 m/s (speed isdouble due to cover length and back again)
Then i did v = (4.54) * (2) = 9.09 m /s
