Due to design changes, the efficiency of an engine increases from 0.28 to 0.51. for the same input heat |qh|, these changes increase the work done by the more efficient engine and reduce the amount of heat rejected to the cold reservoir. find the ratio of the heat rejected to the cold reservoir for the improved engine to that for the original engine.

the ratio of the heat rejected to the cold reservoir for the improved engine to that for the original engine is 0.68

Explanation:

Given information

initial efficiency, η = 0.28

final efficiency, η = 0.51

ratio of the heat rejected = (1 - η)/(1 - η)

                                        = (1 - 0.51)/(1 - 0.28)

                                        = 0.68

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

i really hope this answer you out! it makes my day people like you and giving back to the community that has me through school! if you could do me a favor, if this you and this is the very best answer and you understand that all of my answers are legit and top notch. mark as brainliest! and have a awesome day!

positive reinforcement? ?