a hydraulic lift has a mechanical advantage of 5N. if the load weighs 350N, what effort is required to lift the weight​

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false