Calculate your maximum heart rate and then measure your heard rate While you areperforming each of three physical activities. Which activities meeting the intensityguideline to help improve your cardiovascular endurance? Based on your goals, howmany days per week and for how long should you perform the activity?a. Cross Country practice, Hiking, Basketball drillsb. Cross country practice is the only one to meet the guidelines. I think I would haveto do it at least 4 times a week for 30 minutes to see how far I can during that time

I'll do it rn and then answer

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.