During a regular cleaning cycle for a cylindrical water storage tank (diameter = 60 feet; depth = 25 feet), a technician accidently overdoses the tank with chlorine. The resulting chlorine concentration in the tank is 25 mg/L and the EPA limit for chlorine in drinking water is 4.0 mg/L. The operator decides to flush the tank with water from the distribution system which has a chlorine concentration of 1.5 mg/L and waste the water until the chlorine level reaches the EPA limit. You may assume that for the timeframes considered that chlorine is conservative (i. e., non-reactive) and the tank is completely mixed. a.If the tank is flushed at a rate of 4,000 gpm, how long (in hours) will it take to achieve the 4.0 mg/L concentration?b. The operator is impatient and wants to get this done in 30 minutes. What flushing flowrate (in gpm) would be required to achieve the 4.0 mg/L concentration?c. Calculate the volume (in gallons) of water used (i. e., wasted) for Part A and Part B. Is there another solution to this problem that you can suggest?

98 points you will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. before you conduct your experiment, you need to form a hypothesis. a hypothesis is a prediction of what you think will happen in the experiment. the hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. record your hypothesis here: record the results from step one of the experiment (dropping the objects in the air): first trial: second trial: third trial: record the results from step two of the experiment (dropping the objects in a vacuum): first trial: second trial: third trial: did the experiment support your hypothesis? using the data from your experiment, describe why you believe your hypothesis was either proven or disproven. what forces were acting on the objects dropped in the air? what force was acting on the objects dropped in the vacuum? part two: comparing forces choose two forces and compare and contrast these forces. you must provide two ways that they are alike and two ways that they are different. you may make a list, write in paragraph form, or make a chart. choose two forces and compare and contrast these forces. these must be different forces than used in the prior question. provide two ways that they are similar and two ways that they are different. you may make a list, write it out, or make a chart.