What will be left of the sun after it dies?

Our star is powered by nuclear fusion, and it turns hydrogen into helium in a process that converts mass into energy. Once the fuel supply is gone, the sun will start growing dramatically. Its outer layers will expand until they engulf much of the solar system, as it becomes what astronomers call a red giant.

Explanation:THERE YOU GO

Once all the helium disappears, the forces of gravity will take over, and the sun will shrink into a white dwarf. All the outer material will dissipate, leaving behind a planetary nebula. "When a star dies, it ejects a mass of gas and dust — known as its envelope — into space.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s