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the total head loss of a piping system is 30m head. the water flow rate is 2l/s; determine the water power output of the pump. if the pump efficiancy is 60% and the motor effeciancy is is 85%, determine the electrical power input to the pump. the density of water is 1kg/l.
Finding exit velocity from air nozzle, Air enters a nozzle operating at steady state at 800 ºR with a negligible velocity and exits the nozzle at 570 ºR.
Determine the coordinates x' and y' of the centroid C of the area shown in the figure and calculate the moments of inertia of the area shown, about ox and oy axes.
A fireclay brick cube, 10 cm in length is removed from a furnace where it was maintained at a temperature of 500 degrees C. The brick cube is then placed in ambient temperature conditions.
Determine the minimum thickness of fibreglas insulation that needs to be used in the wall in order to avoid condensation on the outer surfaces.
A 40 mm diameter hole is drilled 3 m deep into the steel shaft. When the two torque are applied, determine (a) the maximum shear stress in the shaft: and (b) the angle of rotation of the free end of the shaft. Use G= 83GPa for steel.
At what location S will the combined moment of the weights of the man and platform about point B be zero?
A Pitot tube measures the total pressure on an airplane flying at sea level as 1.07 x 10^5 N/m^2. What is the velocity of the airplane?
The motion of a particle in defined by the relation x = t3 - 15 t2 - 20, where ‘x' is expressed in metres and ‘t' in seconds. Determine the acceleration of the particle at t = 3 seconds.
Three springs and a mass are attached to a rigid, weightless bar PQ. Find the equation of motion and the natural frequency of vibration of the system.
Determine an expression for the number of cycles to failure, Nf if the initial crack size is a0. State any assumptions you make.
A Pitot-static probe connected to a water manometer is used to measure the velocity of air. If the de?ection (thevertical distance between the ?uid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.25 k..
A first class lever, in static equilibrium, has a 50lb resistance force and 15lb effort force. The lever's effort force is located 4 ft from the fulcrum.3. Using static equilibrium calculations, calculate the length from the fulcrum to the resista..
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