Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

49 tamela12 Please help What is the efficiency of a device that takes in 40,000 J of heat and does 12,000 J of work while giving off 28,000 J of heat? Use and convert to a percentage. A. 57% B. 43% C. 30% D. 70%