J. c. wants to determine if there is a relationship between room color and sleep. based on his research, j. c. makes an educated guess that people fall asleep more quickly in a room painted blue than in a room painted yellow. he asks several people which color they like better, yellow or blue, and uses their responses to see if his educated guess was correct. what is missing from j. c.'s scientific investigation? a. experiement testing hypothesis b. research on topic to see what others learned. c. hypothesis based on research that can be tested d. analysis of responses from all test subjects
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Chemistry, 22.06.2019 13:30
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
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Chemistry, 22.06.2019 19:00
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury
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J. c. wants to determine if there is a relationship between room color and sleep. based on his resea...
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