ection DO2 (Mahan), Fall 2023 | WebAssign 4. [-/2 Points] DETAILS OBINPHYS8 5.P.005. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER it fit the hole? A machinist wishes to insert a silver rod with a diameter of 2 mm into a hole with a diameter of 1.996 mm. By how much would the machinist have to lower the temperature (in .C) of the rod to make Need Help? Read It Submit Answer 5. [-/2 Points] DETAILS OBINPHYS8 5.P.029. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER As a gasoline engine is running, an amount of gasoline containing 19,000 J of chemical potential energy is burned in 1 s. During that second, the engine does 3,800 J of work. (a) What is the engine's efficiency (in percent)? (b) The burning gasoline has a temperature of about 4,300OF (2,600 K). The waste heat from the engine flows into air at about 90F (305 K). What is the Carnot efficiency (in percent) of a heat engine operating between these two temperatures? Need Help? Read It Submit Answer ASK YOUR TEACHER PRACTICE ANOTHER 6. [-/2 Points] OBINPHYS8 5.P.031. MY NOTES DETAILS An irreversible process takes place by which the entropy of the universe increases by 1.77 J/K. If the temperature of the environment in which the process occurred is 245 K, how much energy (in J) was made unavailable for useful work as a result