A stiff footing of size 4.5 m ´
4.5 m carries a load distributed as
shown in Figure 3.
(a)
m2)
Find the vertical stress (in kN/
due to the loading at a
point located at center of the footing.

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false