Idc if you guys answer im just trying to prove someone something

The energy will be increased

When rubbing a balloon with a wool cloth, it puts negative charges on the balloon. Negative charges attract to positive charges. If a balloon is not rubbed with the wool cloth, it has an equal amount of negative to positive charges, so it will attract to a rubbed balloon

The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist. One way to remember which muscle is the agonist: it's the one that's in 'agony' when you are doing the movement, as it is the one that is doing all the work.

Explanation: