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Ah that's a good suggestion. Looking at the context and previous questions of the textbook though I don't think I need to. Thanks. :)

Homework Statement Calculate the maximum flow rates through the Francis and the Samson turbines under the conditions specified: Table 1 Characteristics of some American water turbines, 1849–97, on the basis of 30-inch (760 mm) wheel and 12-inch (300 mm) head Type | Maximum power output...

I was given an amendment to the question. It was 'maximum efficiency' not 'maximum load' values. Have hence sorted the problem. Thanks to everyone who took a look at it.

Homework Statement A small dc motor has the following specifications and is being considered for powering the propeller of a model boat. The propeller has the intended capability of supplying 0.1Nm of torque at 200rpm. Operating voltage = 4.5V Stall torque = 6.6*10^-3 Nm Stall current =...