Ascientist spends most of his time observing the night time sky and tracking the orbits of planets. which branch of physical science is he most likely studying?

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

The solid that is formed and usually sinks to the bottom of a solution is the