11. A 30-kg box is 0.2 m long and 0.15 m wide. What pressure does it exert on the floor?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

What energy is it when you flip on a switch on a lamp

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.