Homework Statement
A heat engine operates in a reversible cycle with the following steps:
(i) An ideal gas characterized by γ = 1.4 expands adiabatically, so that it cools from an initial temperature of 330°C to 30°C.
(ii) It is compressed isothermally until it reaches its initial volume...
Homework Statement
Grains of sand of mass 3.10 10-3 g each, fall from a height of 0.8 m on a sticky surface at a rate of 50 grains per second per cm^2. What pressure does this shower of sand exert on the surface, assuming that air resistance can be neglected?
Homework Equations
P=F/A...