A small 200 kg sports car collides with a large 800 kg truck. Before the collision, the sports car was traveling at 25 m/s and the large truck was traveling at 10 m/s in the same direction. What was the total momentum of the car and truck?. In the collision if the car and truck stick together, what will be their speed after the collision?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

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!