Please help YOU DONT HAVE TO ANSWER EVERYTHING You stand 1.5 meters away from a concave mirror with a focal length of 2 meters.
a. Draw a ray diagram for the situation. Describe the image (real or virtual, upright or inverted, reduced or enlarged).
b. Where is the image located?
c. What is the magnification of the image?
d. Is your ray diagram consistent with your math? Explain.

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.