Question: 1 . The time for water - initially 5 m height to be drained by 4 m is 2 0 minutes. If an additional air

1. The time for water-initially 5m height to be drained by 4m is 20 minutes. If an additional air pressure above the closed tank will be applied, the same volume will be drained in 10 minutes. What should be the applied air pressure

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