Transverse waves are sent along a 4.50 m long string with a speed of 85.00 m/s. The string is under a tension of 20.00 N. What is the mass of the string (in kg)?

m = 0.0125 kg

Explanation:

Let us apply the formula for the speed of a wave on a string that is under tension:

where F = tension force

μ = mass per unit length

Mass per unit length is given as:

μ  = m / l

where m = mass of the string

l = length of the string

This implies that:

Let us make mass, m, the subject of the formula:

From the question:

F = 20 N

l = 4.50 m

v = 85 m/s

Therefore:

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explanation:

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