Which of the following situations would cause the greatest increase in the motion of molecules in a system?
A. Q = -50 J, W = -50 J
B. Q = +50 J, W = -50 J
C. Q = -50 J, W = +50 J
D. Q = +50 J, W = +50 J

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

Name two kinds of practical electric pumps.