The power developed by a water turbine running at 120 rpm under a head of 27 m, is 10 mw. if a model with same rotor diameter operates under 20 m head; (a) calculate the rotation speed of the model in rpm a. 6800 b. 8600 с. 1 d. 500 (b) calculate the power output from the model in kw а. 103 b. 107 с. 208 d. 301 (c) if the hydraulic efficiency is 100%, what is the discharge in m3/s through the model a. 30.58 b. 27.32 c. 56.66 d. 93.53

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force