List physical and chemical properties used to identify evidence at a crime scene

Consider the following problem: a box with an open top is to be constructed from a square piece of cardboard, 3 ft wide, by cutting out a square from each of the four corners and bending up the sides. find the largest volume that such a box can have.

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f