A boy jumps from rest, straight down from the top of a cliff. He falls halfway down to the water below in 0.883 s. How much time passes during his entire trip from the top down to the water

Write a question about how changing temperature affects the gas inside the sports ball

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 an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false