A spring is stretched between two posts when a pulse is
A spring is stretched between two posts. When a pulse is produced at one end of the spring, it makes 4 back-and-forth trips along the spring in 3.4 s. If the pulse has a propagation speed of 12 m/s, how far apart are the posts?
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a spring is stretched between two posts when a pulse is produced at one end of the spring it makes 4 back-and-forth
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