Select the correct answer. a car traveling south is 200 kilometers from its starting point after 2 hours. what is the average velocity of the car? a. 100 kilometers/hour south b. 200 kilometers/hour c. 200 kilometers/hour north d. 100 kilometers/hour

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An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above