A cylinder is filled with toxic gas to a pressure of at . According to the manufacturer's specifications, the cylinder may rupture if the pressure exceeds (pounds per square inch; ). What is the maximum temperature to which the cylinder could be heated without exceeding the pressure rating ?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

What sort of waves exhibit the doppler effect?