Acar starts from rest and is subjected to a constant
acceleration of a=15ft/s^2 for 0< =t< 10s . the brake is then
applied , which causes a deceleration at the rate shown until the
car stops. determine the t1when the car stops.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.