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A circular finished concrete drainage pipe with a diameter of 1.20 m carries 1.45 m3/s. Use y = 0.50 m in (d).a) Calculate the critical depth.b) Calculate the minimum specific energy.c) Plot the specific energy curve.d) Determine the specific energy for the given depth and the alternate depth for this energy.e) Determine the velocity of flow and the Froude number for each depth in (d).