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Ice cream flavor has a ______-level of measure. a) ratio b) interval c) nominal d) ordinal

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calculate the pH of a solution that is 0.080 molar in trimethylamine ch33n and 0.13 Molar and trimethylammonium chloride ch33nhcl

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Timed Test This test has a time limit of 45 minutes. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Not allowed. This test can only be taken once. Attempts Force Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit. Completion Your answers are saved automatically. Remaining Time: 21 minutes, 55 seconds. Question Completion Status: Moving to another question will save this response. Question 19 Humans are similar to primates in that we both rely heavily on the use of symbols in our cultures. True False Moving to another question will save this response.

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When we perceive the colour black Select one: a. our L- and M- cones are fully activated b. our S- cones are fully activated c. essentially none of our cones is activated d. all of our cones are fully activated to a high degree

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A 0.65 kg baseball crosses the plate horizontally at 50 m/s. A bat makes contact with the ball for 125 milliseconds and sends the ball in the opposite direction at 60 m/s. What was the average force exerted by the bat on the ball?

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What type of data does this test use? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a Nonparametric b Parametric

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Why is it better to model a categorical independent variable as a series of dummy variables rather than using the categorical variable itself?

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2.6 Z-scores & the Empirical Rule Score: 16/93 7/36 answered • Question 30 < > Assume that speed of vehicles at a particular stretch of a highway have normal distribution with mean miles per hour and standard deviation of 5 miles per hour. (a) Find and interpret the z-score of a driver who drove 49 mph across this stretch of highway. z-score = The driver's speed of 49 mph means that this driving speed is Select an answer the mean. standard deviations. (b) Find and interpret the z-score of a driver who drove 59 mph across this stretch of highway. z-score = The driver's speed of 59 mph means that this driving speed is Select, an answer the mean. standard deviations

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3-phase, Y-connected 4-pole, 60 Hz generator has Xs = 2Î©, rs = 0Î©, and Lsf = 0.3 H. The field current is 150 A and the RMS terminal voltage is 2000 V with a power angle of 30Â°. Calculate: 3. Find the magnitude of the final current (without angle).

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Since you did such a good job with the first environmental problem, your boss asks you to figure out this one: A feed of 40 wt% isopropyl alcohol, 55 wt% ether, and the balance water is mixed with pure water (the solvent) in an LLE system to extract the IPA. The solvent is of higher density and, therefore, enters the top of the column while the feed enters the bottom. The goal is to produce a raffinate ether containing less than 3 wt% alcohol and an extract of at least 20 wt% alcohol. The system operates at 1 atm and 25°C a) What is the composition of the mixture produced? Assuming 75% efficiency b) Assuming 75% efficiency, how many separation stages are necessary to complete the desired separation? Use the diagram on the next page to solve:

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sebastian l.