You plan to number each account in your Chart of Accounts. You want to have major categories and 2 levels of sub-categories. Each level of category will be represented by a digit. You want to have room in your numbering for at least ten accounts within the lowest level of sub-categories. How many digits do you need in your account numbers?

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

The object's initial distance above the groundthe object's initial velocity

The answer is periosteum