The working equation for flow rate, that reveals its dependence on pressure difference, radius of tube, length of tube and the viscosity of the fluid is: Problem 30, ch. 6: We are asked to determine...

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Extracted text: The working equation for flow rate, that reveals its dependence on pressure difference, radius of tube, length of tube and the viscosity of the fluid is: Problem 30, ch. 6: We are asked to determine the new flow rate, when the old flow rate is given, and only one variable is changed at a time. Looking at the Flow rate equation, we mus first determine if the variable being changed, is directly or inversely proportional to the flow rate. First, write down the flow rate equation from memory: a. In problem 30, the new viscosity is 1.5 times its original value. Is viscosity directly or inversely proportional to flow rate? b. If the variable is directly proportional to flow rate, you should: (Multiply; Divide) the original flow rate by the ratio of the new variable to original.