Let A be the sum of the last three digits, let B be the last three digits, and l

Question

Let A be the sum of the last three digits, let B be the last three digits, and let C be the last digit of your 8-digit student ID. Example: for 20245347, A = 14, B = 347, and C = 7 A 2.00 m long string has a mass of g. A g mass is attached to the string and hung over a pulley (see illustration from one of the team problems). The end of the string is then vibrated at a frequency of Hz. Find the wavelength for the wave generated. Give your answer in centimeters (cm) and with 3 significant figures. A= 13 B = 427C = 7|

Explanation / Answer

(A) T = (0.427 + 0.025) x 9.8 = 4.43 N

linear mass density = mass / length = (13 + 1.50) x 10^-3 / 2

= 7.25 x 10^-3 kg / m

v = sqrt[ T / linear mass density]

= sqrt[ 4.43/ (7.25 x 10^-3)]

= 24.7 m/s

wavelength = v / f

= 24.7 / (125 + 7)

= 0.187 m

= 18.7 cm

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