1.Determine the minimum height on the wall to which the firefighter can project water from the hose, so that the water strikes the wall horizontally. The speed of the water at the nozzle is Vc=48ft/s. Distance from the hose to the wall is 30ft. and vertical distance from the ground to the hose is 3ft. No angle is given.
2.A container with a plunger compresses one pound mole of an ideal gas from 1 atmospheres pressure to 10 atmospheres. Calculate the amount of work done if the process is considered to be polytropic. Assume the temperature to be 273K and the value of k for the process to be 1.4. All losses are neglected.