Multiple ChoiceThe earth's circumference is approximately 40.1 Mm (megameters). What is this circumference in kilometers?6639views221rank7comments
Multiple ChoiceAstronomers often detect radio waves with wavelengths of 3,000,000,000 nm. What is this wavelength expressed in decameters (dam)?4489views210rank5comments
Textbook QuestionThe position of an object is given by 𝓍 = At + Bt², where 𝓍 is in meters and t is in seconds. What are the units of A and B?1332views