John plotted a graph to show how the mass of aluminium rivets affected the distance the cup moved down.

using the graph (attached) explain why the graph stayed flat with masses greater than 40g.

Sorting by the rock cycle

Iwould sure like to answer your question but i honestly just don’t know

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.