How calculate net energy for lactation of cow?

By eating and digesting grass (or other foods)

from the sun, calmine, fossil fuels and so on

(Useful energy that comes out) = (total energy that goes in) times (conversion efficiency) or (Useful energy that comes out) = (total energy that goes in) minus (energy lost in conversion)

There are many kinds of potential energy but only one kind of kinetic energy. Using gravitational energy as potential energy we get. mgh=1/2mv2 simplifying gives 2gh=v2

December 31 Total Assets Total Liabilities 2005 $24,400 $12,800 2006 $30,300 $12,500 2007 $67,300 $27,700 1. Compute the amount of Mott and Moss' net income (or loss) for 2006 assuming...