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(7a) When a hollow metal pipe that is open at both ends is cut into two pieces, the lowest resonance frequency in one piece is 247 H2 and that for the other is 452 Hz

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(7a) When a hollow metal pipe that is open at both ends is cut into two pieces, the lowest resonance frequency in one piece is 247 H2 and that for the other is 452 Hz. What lowest resonant frequency would have been produced by the original length of pipe? Assume the speed of sound in air is 345 m/s. Tries 0/10 (7b) How long was the original pipe? 3 Tries 0/10 0 a (8) A 105.7 g cord has an equilibrium length of 5.14 m. The cord is stretched horizontally to a length of 8.57 m, then vibrated at 36.3 Hz. This produces a standing wave with two antinodes. What is the spring constant of the cord? Submit Answer Tries 0/10 0 a (9a) A 118.4 cm long, 6.97 g string, fixed at both ends, oscillates in its n = 3.00 mode with a frequency of 266.0 Hz and a maximum amplitude of 4.29 mm. What is the wavelength of the oscillation? mes one (9b) What is the tension in the string? :] Submit Answer Tries 0/10