In the image of the underwater submarine (i can't upload it), if the only 2 forces acting on the submarine are the downward force of gravity and the upward force of buoyancy, how will the submarine move? a. it will sink downward b. it will neither sink nor float. c. it will float upward

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of