(a) Express this as energy per kilogram of hydrogen consumed.
(b) The power of the Sun is 3.9 ( 1026 W. If its energy derives from the proton-proton cycle, at what rate is it losing hydrogen?
(c) At what rate is it losing mass?
(d) Account for the difference in the results for (b) and (c).
(e) The mass of the Sun is 2.0 ( 1030 kg. If it loses mass at the constant rate calculated in (c), how long will it take to lose 0.10% of its mass?