Scientist crafted the big bang theory after studying numerous galaxies and finding that most of them had red shifts. Describe what kind of theory scientists might have crafted if most of the galaxies they studied had blue shifts.

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!