A magnetic field is: a piece of ground with lots of iron in it.

B the space around a magnet where it attracts magnetic materials.

C the space around a magnet where it attracts all metals.

D the space around a magnet where it repels magnetic materials.

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!