1800 cm3 of fresh water of density 1000 km is mixed with 2200cm of water of density
1025kg3.calculate the density of the mixture.

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

Ways that industry and agriculture use physical properties to separate substances