Oscillating simple pendulum slowing down
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.)
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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.
Determine the sample size needed to construct a 90% confidence interval to estimate the population mean when ? = 75 and the margin of error equals 12.
Determine the sample size needed to construct a 95% confidence interval to estimate the population mean for the following margins of error when ? = 80:
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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Write a letter to the editor on land pollution that threatens the health of individuals living in Guyana, and clearly define the problem.
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