A sealed tank contains 27.0 moles of an ideal gas at an initial temperature of 270K. The pressure of the gas is increased until the final pressure equals 1.8 times the initial pressure. The heat capacity at constant pressure of the gas Cp is 28.0 J/mol*K. What is the adiabatic constant of the gas?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic