the radius of the earth is r. at what distance above the earth's surface will the acceleration of gravity be 2.45 m/s 2?

Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?

Keep your choice of a major there is probably no single correct choice. a ) to yourself. b) in perspective. c) based solely on the expectations of others. d) all of the answer choices are correct.

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide