The sun has a mass of 1.99x10^30 kg and a radius of 6.955x10^8 m. What would be the weight of a 54.0 kg astronaut if she could stand on the surface of the sun?

none, its a machine

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

snell's law

refractve index = sin incidence / sin refraction

the ima (higher than 1m) will be greater than the ima with the height of 1m.