Astar is estimated to have a mass of 3x10^36 kg. assuming it to be a sphere with an average radius of 7.6x10^5 km, calculate the average density of the star in units of grams per cubic centimeter.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?