You see a penny lying on the ground. a penny won't buy much these days, so you think: "if i bend down to pick it up i will do work. to do that work i will have to burn some energy. it probably costs me more to buy the fuel (food) to provide that energy than i would gain by picking up the penny. it's not cost effective." you pass it by. show answer no attempt is the argument correct? estimate the energy cost for picking up a penny. you may find the following information useful: a jelly donut contains about 250 calories (1 calorie = 1 kcal).