PLEASE HELP Rigil Kent is a main sequence star (G2). Its temperature is measured to be about 5,800 K. If the apparent magnitude is +1.33, then how far is it from the Earth?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points