2. The following measurements were made to determine the density of a material whose value was, according to the handbook of Chemistry and Physics, 1.15 g/mL
Trial #1
0.95 g/mL
Trial #2
1.16 g/mL
1.26 g/mL
a. make a general comment on the accuracy of these results
Trial #3
b. make a general comment on the precision of these results
c. what may have caused these results?

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 actual answer is c force stays the same while direction changes

The answer would be d. hope this :