Aluminium is a non magnetic metal. However, it can become magnetised under special conditions. Explain how. (4 marks)

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

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 is friction? how does it affect the motion of an object?