Circle the word that makes the statement true. 1. In 1970 the US government set air quality standards called the (Breath Easy Act,
Clean Air Act).
2. Particles of carbon that enter the air when wood or coal are burned are called
(dust, soot).

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Which subatomic particle has a negative charge

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 equation 2: 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!