Momentum has a
a. direction only
b. magnitude only
c. direction and magnitude

Momentum has both direction and magnitude.

It is a vector quantity.

Its formula is =  Mass * Velocity,    Mass you know is associated with size and velocity of course is associated with direction.

C. direction and magnitude

C. Direction and Magnitude

It is a vector quantity

Your answer is 32 hope i  

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.