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A 1.0 kg mass, hanging vertically from the bottom of an inverted cone, is held in place by a 2.0 kg wheel that is rolling (without slipping) with a constant speed in a horizontal circle on the inside of the cone, as shown in the figure. They are attached by a string that passes through a pulley and a hole in the middle of the cone. If the cone makes an angle of 20 degrees with respect to the horizontal and the wheel is always 1.0 m from the center line of the cone.
What is the maximum and minimum speed with which the wheel can go to keep the hanging mass in place, given the coefficient of static friction between the cone and the wheel is 0.40.
Make a well-labeled bar graph that compares opinions about astrology for the three education categories. Describe what you see.
Give a 95% confidence interval for the mean difference in hemoglobin level between the two populations of infants.- State the assumptions that your procedures in parts (a) and (b) require to be valid.
TAX PREPARATION A survey in which people were asked how they were planning to prepare their taxes in 2007 revealed the following.
Your first task is to investigate bridge designs that you think are appropriate for this task. Bridges are very important structures and whether you are going to pursue a structural engineering career or not, this project will catapult you into th..
What is the probability that a randomly chosen member of the population in the area will be exposed to at least one method of advertising during a given week?
if a manager believes that the required sample size is too large for a situation in which she desires to estimate the
Probability question: Let X1, X2,....be a sequence of random variables such that P(X of n = 1/n) = 1 - 1/n^2 and P(X of n = n) = 1/n^2. Does X of n converge in probability? Does X of n converge in quadratic mean?
consider the following. give your answers correct to two decimal places.a determine the value of the confidence
Assuming that the standard deviation of stock price movements that day was 2 points and assuming stock price movements were normally distributed around their mean of 1.5, what is the probability that the average stock price of your portfolio incre..
The producer's risk in a sampling program is 0.05 and the consumer's risk is 0.10; the AQL is 0.03 and the LTPD is 0.07. (a) What is the probability of accepting a lot whose true proportion of defectives is 0.03?
The claim is that for measurements of standard head injury criteria in car crashes, u = 475 HIC. The sample size is n = 21 and the test statistic is t = -2.242
What is the probability that a simple random sample of automobile insurance policies will have a sample mean within 25 of the popluation mean.
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