Determine a prescalar, ocr0a value, and isr for an 8-bit timer to generate a 400hz square wave for 3 seconds on pd1. recall the arduino runs at 16 mhz and valid prescalars are: 1, 8, 64, 256, 1024(choose the smallest prescalar that works).

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!