2. Ideal single-phase step-down transformer U1 / U2 = 2400/120V. The machine is connected to the grid electricity with a voltage of 2.6 kV. From the sine shape at this time the steel core is  = 0.09sin314tWb.
Determine the number of loops of the primary and secondary wires

Electoral current force mechanical advantage if the wheel and axle is 2 n and the output force is 20 n

Global warming was a major concern some people do not care global warming is fake it is not real the percentage of it happening  is slight 

Sorry i don’t know what to do

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.