Assume that the core of the Sun has one-eighth of the Sun's mass and is compressed within a sphere whose radius is one-fourth of the solar radius.Assume further that the composition of the core is 35% hydrogen by mass and that essentially all the Sun's energy is generated there. If the Sun continues to burn hydrogen at the current rate of 6.2 ( 1011 kg/s, how long will it be before the hydrogen is entirely consumed? The Sun's mass is 2.0 ( 1030 kg.