Question

The A string on a string bass is turned to vibrate at a fundamental frequency of 55.0Hz. If the tension in the string were increased by a factor of four, what would be the new fundamental frequency?

I need some guides to do it. Thx.
bobpursley
the laws of strings applies:

http://primes.utm.edu/mersenne/LukeMirror/mirrors/eb/mers_02.htm

What is the square root of four?
frequency proportional to square root of tension
sqrt 4 = 2
so 2*55 = 110
how to draw one photon of orange light with frequency 620nm and identify velocity, electric field, magnetic field and wavelength

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