jjjjjjgegi898 jjjjjjgegi898 28-01-2024 Engineering contestada A turbine develops 9000 kW when running at 100 rpm. Head on the turbine is 30 m. If the head on the turbine is reduced to 18 m, speed of the turbine under 18 m is: 1. 77 rpm 2. 18 rpm 3. 180 rpm 4. 30 rpm