A heavy box is pulled across a wooden floor with a rope. The rope forms an angle of 60° with the floor. A tension of 80 N is maintained on the rope. What force actually is pulling the box across the floor? Please help!

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!