Question

Find the linear mass density of the segment of the string.

In our lab we had a string. A portion of it was stretched and on one end was a vibrating thing that created waves in the string. Here's the data.

Mass of entire string: 12.43g

Mass of segment of string that waves were made on: UNKNOWN

Length of entire string: 294.34 cm

Length of segment of string that waves were made on: 59.10 cm (when it was unstretched)

I thought that to get the answer I would put the entire string and segment of string on a ratio and try to solve for the mass of segment of string. However, I keep getting a wrong answer. Correct answer should be near .02858 g/cm. This is the number I got when i solved from a trendline equation gathered from the experiment on the computer.

other information that I think is not necessary:

length of segment of string stretched: 79.90 cm

Resonance (1 antinode) was at 26HZ, 2 antinodes at 52 HZ, 3 at 78Hz, 4 at 105, 5 at 130, 6 at 156, 7 at 181Hz.

hanging mass on other side of string that was stretching it out was 499.6 grams.

Answer 1

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