Why is the universe here and why do we exist?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

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!

Identify some abiotic characteristics of the tundra biome.