Question 18 of 25 The diagram below shows the velocity vectors for two cars that are moving
relative to each other.
25 m/s west
Car 1
20 m/s west
Car 2
From the frame of reference of car 2, what is the velocity of car 1?
A. 5 m/s west
B. 5 m/s east
C. 45 m/s east
D. 20 m/s west

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.

Iwould think it is temperature, silica, oxides (gases)

B? i think so but hope that's right and answers your question

Hello,the answers iron,  hope this