Which best describes how heat changes the state of a substance? Out of these answers

Heat destroys the molecules in a substance.

Heat steals the molecules from cold substances.

Heat absorbs the molecules of a substance and releases them once they cool.

Heat causes the molecules of a substance to spread out into a new arrangement.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

Which describes increasing the efficiency of energy resource