Respuesta :
Answer:
4.74 x 10⁷ yr
Explanation:
m = Rate of conversion of mass to energy by sun = 4 x 10⁹ kg/s
t = total time taken to convert mass of earth to energy
M = mass of earth = 5.98 x 10²⁴ kg
Using the equation
M = m t
5.98 x 10²⁴ = (4 x 10⁹) t
t = 1.495 x 10¹⁵ sec
we know that, 1 yr = 3.154 x 10⁷ sec
t = (1.495 x 10¹⁵ sec) (3.154 x 10⁷ sec)⁻¹ yr
t = 4.74 x 10⁷ yr
Answer:
7.665×[tex]10^7[/tex] year
Explanation:
It is given that the Sun convert 4×[tex]10^9[/tex] kg of mass into energy every second
We have to find that how much time Sun will take to convert mass of earth into energy
The mass of earth is 9.67×[tex]10^{24}[/tex] so the time required to convert this mass into energy [tex]=\frac{9.67\times 10^{24}}{4\times 10^9}=2.417\times 10^{15}sec=7.665\times 10^7\ year[/tex]
So the required time will be 7.665×[tex]10^7[/tex] year
