9. The baseball catcher throws a ball vertically upward and catches it in the same spot as it returns to themitt. At what point in the ball’s path does it experience zero velocity ?a. midway on the way upD. at the top of its trajectoryc. the instant it leaves the catcher’s handd. the instant before it an'ives in the catcher’s mitt

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.