Mass of Sun 2.0 x 10^30 kg

Mass lost each second 4.3 × 10^9kg

Lifetime of the Sun left 5 x 10 ^9years

Calculate the percentage of the Sun's mass that will
be converted to energy in the remainder of its
lifetime.

Percentage of mass converted to energy =

Percentage of mass converted to energy = 99.9 %

Explanation:

By far most of the solar system's mass is in the Sun itself: somewhere between 99.8 and 99.9 percent. The rest is split between the planets and their satellites, and the comets and asteroids and the dust and gas surrounding our star. Seen from afar (on the scale of distances between stars) the presence of the solar system would not be obvious. We would simply see a normal-looking star. Perhaps we would pick up the presence of Jupiter, which makes up two thirds or so of the solar system outside of the Sun, by mass.

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explanation: