Astainless steel rod (aisi 304) of length l = 100 mm and triangular cross section is attached between two isothermal heat sinks at to = 50°c. the rod perimeter is p = 5 mm. when an unknown fluid at t∞ = 23°c is in cross flow over the rod, the temperature of the rod midway between its two ends is measured to be tmid = 25°c. determine the value of the convection heat transfer coefficient and the rate of heat loss from the rod. the thermal conductivity of stainless steel is k = 15.1 w/m k

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)

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.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?