Question

If the Sun were to disappear or somehow radically change

itsoutput, how long would it take for us on Earth to learn
aboutit?

Answer 1

Explained

Step-by-step explanation:

The distance between The Earth and the sun is about
`15*10^(11) meters`. The speed of the radiations coming Earth from the Sun is
`3*10^8 m/s`.

therefore, the radiations take about 8 minutes and 23 seconds to reach the Earth surface. So, If the Sun were to disappear or somehow, it would take about 8 minutes and 23 seconds for us to learn about it.