Mastering Physics: Assignment 30 Mozilla Firefox Masteringphysics: Assig x https

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Mastering Physics: Assignment 30 Mozilla Firefox Masteringphysics: Assig x https:// gphys Phys 2109-2110 Assignment 30 em 3 Item 3 A 2.4 m -long string is clamped at both ends. HE Search the web and Windows /myct/i Q. Search D-62205883 Part A What is the longest-wavelength standing wave that can exist on this string? Express your answer using two significant figures. My Answers Give Up Submit Part B If the wave speed is 56 m/s, what is the lowest standing-wave frequency? Express your answer using two significant figures. Hz Sub My Answers Give Up Signed in as Emily Wiedemann Help Close Resources previous l 3 of 7 l next Continue Provide Feedback 2:52 AM 4/23/2016

Explanation / Answer

Part A:

Longest wavelength possible would be 2 times the length of the string which is 48 m.

A------------------B

when the wave travels from A to B it will be a crest and when it travels from B to A it will be a trough. and thats y

the longest possible wavelength is 2 times the length of the string.

Part B:

To find the lowest standing frequency we use the equation

v = f* lambda
f = v/lambda = 56 /48 = 1.167 Hz
v is the speed of the wave, f is the frequency and lambda is the wavelength

I hope that helps :-)

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