The discharge of a single suction centrifugal pump operating against a total head of $12 \mathrm{~m}$ is $50 \mathrm{~L} \mathrm{~s}^{-1} .$ If the pump is directly connected to a motor operating at $1440 \mathrm{rpm},$ the specific speed of the pump will be_______________
The discharge of a single suction centrifugal pump operating against a total head of $12 \mathrm{~m}$ is $50 \mathrm{~L} \mathrm{~s}^{-1} .$ If the pump is directly connected to a motor operating at $1440 \mathrm{rpm},$ the specific speed of the pump will be_______________