Recent content by kenshin6249

how about this case? with the fluid pushing the shaft to turn there is an energy = 0.5mv2 = E1. the power of the fluid = \rho*g*h*Q = P1 with the rotating shaft energy = 0.5Iω2 = E2 with 2 different energy we can determine the efficiency. efficiency = \frac{E2}{E1} = \frac{P2}{P1}...

yes that one i know. is something similar to finding the power output of a turbine connected to a shaft onto a flywheel. the flywheel is spining in constant angular velocity by connecting it to a generator or a dynamo to producing a power output. i need to find the power generated before...

nop it is just spinning at that speed from the start to the end.

how do i calculate angular acceleration from the given data? with constant angular velocity do it have angular acceleration?

how do i calculate the power produced by a rotating disc? for example given that the constant angular velocity is 30rad/s, diameter of disc is 0.5m, mass is 15kg. or do u need more data to calculate the power? if yes, what data do u need?