Solve the following equations for ib:
vc=(ib+βib)re,
vc=vb−v0,
vb=vccr2(1+β)re+v0r1r2r1r2+(1+β)re( r1+r2).

express your answer in terms of the variables r1, r2, v0, vcc, re, and β.

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.

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

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