Acircuit has a known resistance of 5 ohms. an ammeter in the circuit gives a reading of 5 amps. what is the voltage of the circuit?

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

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.

How do you tell if someone actually cares about you? and just say they do?