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Water is supplied to an office building 41.5 m high through a pipe at ground level.

a) Find the minimum pressure in the supplypipe so that water can reach the top floor of the building.
b) Suppose the pressure in the supply pipe is designed so that water can flow out through a much smaller pipe on the top floor ata speed of 4.85 m/s. Find the pressure inthe larger pipe on the ground floor.

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