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I know this seems very basic, but I have a question about standing waves.
For example, A slinky of length 3.15 m is tied with a light string on both ends such that both ends are free to move. When a person holding on to one of the light strings moves her arm at just the right frequency, a standing wave with 5 nodes is formed.
(a)How far from one free end of the slinky is the node closest to that free end formed?
This seems VERY simple, but wouldn't you just divide the length of the slinky by the number of antinodes to find the distance between nodes and use that as your distance from the free end to the node?
If this is so, wouldn't it come out to 0.525? If so, this is the answer that I provided for the problem, which was then marked incorrect. Is there something I am doing wrong or is there a different way to approach it?
Please help, I am quite confused as to why my answer is incorrect
For example, A slinky of length 3.15 m is tied with a light string on both ends such that both ends are free to move. When a person holding on to one of the light strings moves her arm at just the right frequency, a standing wave with 5 nodes is formed.
(a)How far from one free end of the slinky is the node closest to that free end formed?
This seems VERY simple, but wouldn't you just divide the length of the slinky by the number of antinodes to find the distance between nodes and use that as your distance from the free end to the node?
If this is so, wouldn't it come out to 0.525? If so, this is the answer that I provided for the problem, which was then marked incorrect. Is there something I am doing wrong or is there a different way to approach it?
Please help, I am quite confused as to why my answer is incorrect