1 + 1 + 1 + 2 equals to what

If a simple machine reduces the strength of a force, what must be increased?

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!