Cise 5:

yvette hangs a 24-n bird feeder in the middle of a rope tied between two

trees. the feeder creates a tension of 480 n in each side of the the rope.

a) if the two trees are 4.0 m apart, how much will the rope sag in the center?

b) if a bird lands on the feeder, will this have any effect on the tension in the

rope? explain.

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