Which of the following signs on q and w represent a system that is doing work on the surroundings, as well as losing heat to the surroundings?

a) q = - , w = -
b) q = +, w = +
c) q = -, w = +
d) q = +, w = -
e) none of these represent the system referenced above.

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?