Question

Estimates show that the total energy output of the sun is 5 × 1026 j/s. what is the corresponding loss in kg/s of the sun?

Answer 1

Estimated total energy output IN ONE SECOND = 5 x 10²⁶ Joules .

Energy = mass · c²  ( Albrecht Einshtein)

c = 3 x 10⁸ m/s

c² = 9 x 10¹⁶ m²/s²

5 x 10²⁶ Joules = mass · (9 x 10¹⁶ m²/s²)

mass = (5 x 10²⁶ Joules) / (9 x 10¹⁶ m²/s²)

mass =  (5 x 10²⁶) / (9 x 10¹⁶)   kg

mass =  (0.55... x 10¹⁰) kg

mass = 5.55... x 10⁹ kilograms

Look at that for a second.  Then think about it for another second.

It's telling us that at its present rate of energy output, the sun is losing more than 5 and a half Billion kilograms of mass every second.  And when we read other things about the sun, they say that the sun is expected to continue doing what it's doing for another 4 or 5 Billion years !

Gives ya some idea of the size and mass of the Sun, doesn't it !