A 50,000-kg train car moving at 2 m/s collides and connects to another identical car initially at rest. Show all calculations.

Phase changes are chemical changes. true or false

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

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!