b. symmetric difference the list of users of 1 but not the two from the presented sets. Frequently symbolized: A + B This incessant jostling is kinetic Strength, along with the sum of it—across trillions and trillions of particles—is what we call thermal energy. An example of a tool https://thermalstresstestingmetho46890.blazingblog.com/35704398/everything-about-localized-thermal-test-systems