Cow has eaten 1500 kJ of stored chemical energy in the form of food. 945 kJ is excreted as waste products. 495 kJ is ‘used’ for respiration.

a. How much of the original 1500 kJ is stored as chemical energy in the

tissues of the cow?

b. The answer to part a is all the energy that can be transferred to a human.

Calculate the efficiency of the energy transfer to the human.

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 big glowy thing is called the sun it is a star in our galaxy and is over 1 million degrees