Question: A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 300 N and is 4.50 m

A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 300 N and is 4.50 m long. What is the tension in each rope when the 600-N worker stands 1.30 m from one end?

Make use of the situations in this scenario and tell us a story of your own that involves a similar type of static equilibrium. You may use approximate values to solve the problem that you come up with.

You want to estimate the mean number of friends for all Facebook users. How many users must be in the sample if you want to be 95% confident that the sample mean is within seven friends of the population mean? Assume the standard deviation is 53.

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