What would be the final temperature if you mixed a liter of 40C water with 2 liters of 20C water?

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%

Based on details in the riddle of the rosetta stone, which statement best describes jean-baptiste fourier’s influence on jean-françois champollion?