Apump steadily delivers water through a hose terminated by a nozzle. the exit of the nozzle has a diameter of 25 cm and is located 4 m above the pump inlet pipe, which has a diameter of 5.0 cm. the pressure is equal to 1 bar at both the inlet and the exit, and the temperature is constant at 20degree c. the magnitude of the power input required by the pump is 8.6 kw. and the acceleration of gravity is c = 9.81 m s'. determine the mass flow rate delivered by the pump, in kg/s.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise