The oxygen taken in by the body reacts with fats, carbohydrates, and protein, liberating energy internally at a rate of about 1.96×10^4 j /liter. if a 77.6 kg man requires 70.0 w of power even while sleeping, what is his rate of oxygen consumption?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?