To water his lawn, a homeowner uses two hoses. One connects to the faucet, the other to the end of the first hose to make the hose longer. Each hose is three meters long, but one has 20-mm diameter, the other has 40-mm diameter. When he turns on the faucet, the flow of water at the open end of the second hose measures 10 liters/min. How do the drops in pressure from the start to the end of each hose?

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.