. A paper airplane of .025kg is falling at a rate 2m/s2. What is the amount of net force? This is for 12th grade

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

If a balloon is taken outside on a very cold day, what will occur?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?