Which two statements are true about energy transformations

First statement is that the total mechanical energy in a close system is always constant.

Second statement is that energy can change from one form to another. e. g from potential energy to kinetic energy

Explanation:

First statement is that the total mechanical energy in closed system is always constant.

Second statement is that energy can change from one form to another.e.g potential energy to kinetic energy.

this could be newton#'s law of cooling. the cooling curve is exponential