A88.9 kg tight rope walker falls from a wire positioned above a safety net. if their potential energy exactly half way down from the top is 2,338 j, what height was the wire positioned above the safety net? note : therefore, if using accelration due to gravity, only use positive 9.81 m/s/s , express your answer as a number rounded to 2 decimal places

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.