Why is the distance traveled between seconds 3 and 4 greater than the distance traveled between seconds 1 and 2 A. The force on a falling object decreases as it falls. B. An object falling due to gravity moves faster every second. C. The object must push the air out of the way as it falls. D. An object slows down as it falls toward Earth.

What are similarities and differences of reflection, refraction, diffraction and absorption?

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)

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell