What letter do you solve for when you look for weight

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

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!

What practical value did astronomy offer to ancient civilizations?