A thin orifice plate inside a pipe causes a large drop in pressure between location 1 and location 2 equal to 145 kPa. Water flows at 500 gpm (gallons per minute). The diameter of the pipe is 10 cm and the diameter of the orifice in the plate is 6 cm. Use the control volume between location 1 and location 2. Compute the magnitude of the force on the orifice plate. Assume a constant density of 1000 kg/m3.

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.