Link BD is made of brass (E = 105 GPa) and has a cross-sectionalarea of 240 mm2. Link CE is made of aluminum (E = 72 GPa) andhas a cross-sectional area of 300 mm2. Knowing that they support rigidmember ABC, determine the maximum force P that can be appliedvertically at point A if the deflection of A is not to exceed 0.35 mm.

The answer is 12, for the points

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.