Find the period of motion
A 2.00kg block hangs from a spring. A 300g body hung below the block stretches the spring 2.00cm farther. (a) What is the spring constant? (b) If the 300g body is removed and the block is set into oscillation, find the period of motion.
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The IRS reported that 62% of individual tax returns were filed electronically in 2008. A random sample of 225 tax returns from 2010 was selected. From this sample, 163 were filed electronically.
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There is an oscillating simple pendulum slowing down. Assuming time starts when the pendulum is released, find an equation for the angle as a function of time. (Note: you must include damping for full credit.)
Determine the sample size needed to construct a 90% confidence interval to estimate the population proportion when p = 0.65 and the margin of error equals 6%.
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