What was the marathoners speed at the top of the hill
A wheelchair marathoner has a speed of 5 m/s after rolling down a small hill in 1.5 s. If the wheelchair underwent a constant acceleration of 3 m/s2 during the descent, what was the marathoner's speed at the top of the hill?
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Suppose that a population is known to be normally distributed with mean = 2,000 and standard deviation = 230. If a random sample of size n = 8 is selected, calculate the probability that the sample mean will exceed 2,100.
For two forces whose magnitude are 400 U and 300 U. find the maximum and minimum magnitudes of their vectors. What directions do the the forces F1 and F2 need to have to provide these magnitudes of the sum?
Calculate the probability that at least 12 in a sample of 20 first-time buyers would take out no-money-down loans if San Francisco's proportion is the same as the nationwide proportion of no-money-down loans.
Determine the radius "r" of an impurity atom that will fit into a tetrahedral site of BCC iron(R=1.241 angstroms) crystal structure.
Maynor County officials have concluded that several legally separate entities must be included as component units of its reporting entity in its CAFR.
A 42 g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 K and has a latent heat of vaporization of 200 kj/kg?
The mean gross annual incomes of certified welders are normally distributed with the mean of $20,000 and a standard deviation of $2,000. The ship building association wishes to find out whether their welders earn more or less than $20,000 annually
ABC began business in January 2009. The firm makes anexercise machine for home and gym use. Following are data takenfrom the firm's accounting records that pertain to its firstmonth of operations.
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