What is the weight of an object with a mass of 20 kilograms on a planet that has an acceleration of gravity of 9.8 m/s2? (Be sure to sure your work.)

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

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!