Twice the rotating frequency
.In slider crank mechanism, secondary forces fluctuate at twice the rotating frequency.
Bernoulli's principle
Venturimeter works on the basis of Bernoulli's principle.
The Bernoulli's equation states that For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another.
The Bernoulli's equation is applied to venturimeter, orifice meter and pitot tube.
1 and 2
In thermodynamics, a process in Quasi-static process and Reversible process undergoes a succession of equilibrium states.
2 and 3
In thermodynamics
Work is path dependent function
Work is area under the curve in a PV diagram
2 and 3
Heat and Work are not completely interchangeable forms of energy
Work can be converted completely into heat