What would be the surface temp of a star that emits twice the energy flux that the sun emits?

Question

The temperature of the sun is 5800 K. energy flux (watts per square meter)
a) 11,600 K
b) 8200 K
c) 6900 K
d) 4880 K

Answer 1

The others set the problem up, but don't answer the question!?

The surface temperature answer for a star emitting twice the energy flux of the sun(Sol) is 6900 degrees K.

Answer 2

The energy emitted by an object in space is proportional to the fourth power of its temperature (°K), so
T^4 = 2(5800)^4

Answer 3

interesting question. for constructive, the actual actuality will be accepted 8 minutes after the shape in the course of the sunlight hours aspect of earth. interior an hour entire panic and chaos would ensue global-huge. interior one hundred hours maximum persons of better life sorts will be lifeless, as all liquid water except the oceans turns reliable (the oceans would take years to freeze). A tiny fraction of humanity would probable live on for a little while through a) first seizing maximum persons of the remaining nutrients supplies and b) burrowing in course of the middle of the earth, which will nonetheless be warm for a pair billion extra years, without or with the sunlight. Doubt that that they had very last lengthy, in spite of the actuality that...