John pushes a 10 pound box 5 feet. How much work is done? 500 ft-lb
1,000 ft-lb
5 ft-lbs
50 ft-lbs

Most likely a is the answer - because  you generate   38 atp's but also consume an atp.   each atp gives approx. less than 4 kcal so probably a is the closest answer.

All the elements are arranged by melting points on the periodic table. in row they go from metals to gasses. in the row from sodium to argon, sodium is more reactive than the one on its right, magnesium.