Answer to Question #131130 in Astronomy | Astrophysics for monique

Question

The Sun converts mass into energy by the nuclear fusion process, this causes the Sun’s mass to decrease by 4.29 × 10^9 kilograms every second! Calculate how much mass loss this adds up to over the next 5 billion years assuming the rate doesn’t change.

Answer 1

$$m=\frac{dm}{dt}t\\m=(4.29\cdot10^9)(5\cdot10^9)(365\cdot24\cdot3600)\\m=6.76\cdot10^{26}kg$$