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To cool a given room it is necessary to supply 4 ft 3/s of air through an 8-in.-diameter pipe. Approximately how long is the entrance length in this
To cool a given room it is necessary to supply 4 ft 3/s of air through an 8-in.-diameter pipe. Approximately how long is the entrance length in this
Final answer:Theentrance lengthrefers to the length of pipe required for the flow to fully develop and become smooth. It is important to determine the entrance length in order to accurately calculate the flow rate.Explanation:The entrance length refers to the length of pipe required for the flow to fully develop and become smooth. It is important to determine the entrance length in order to accurately calculate the flow rate. In this case, the given flow rate is 4 ft3/s through an 8-inch diameter pipe.The entrance length can be calculated using the equation Le = 0.05 * D * (Re)1/2 where Le is the entrance length, D is the pipe diameter, and Re is the Reynolds number. The Reynolds number can be calculated as Re = (density * velocity * D) / viscosity.Once the entrance length is determined, it will give an estimate of how long the pipe needs to be to achieve fully developed flow and ensure accurate cooling of the room.Learn more about Entrance Length here:brainly.com/question/34443003#SPJ11...