A connecting vessel consisting of 2 branches with regular cross-section s1=s2= 200cm2 contains mercury ( d= 13600N/m2 ). People poured 3 liters of water into the left branch. Find the difference between 2 open sides of 2 branches

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and