The top floor of an office building is 40 m above street level and is to be supplied with water from a municipal pipeline buried 1.5 m below street level. The water pressure in the municipal pipeline is 450 kPa, the sum of the local loss coefficients in the building pipes is 11.0, and the flow to be delivered to the top floor at 25 L/s through a 150-mm diameter PVC pipe. The length of the pipeline in the building is 65 m, the water temperature is 20ºC, and the water pressure on the top floor must be at least 150 kPa. a) Will a booster pump be required for the building? b) If so, what power (in kW) must be supplied by the pump?