Greg and shawn are studying for a physical science test. greg thinks that the kinetic energy of an object depends on the height and speed of an object, but shawn thinks it depends on the mass of an object. who is right and why?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.