Carole owns a two story house with a heating and cooling unit on each floor. in the winter she mostly uses the downstairs unit because the volume of warm air and warming the whole house through a) expands, rises, convection b) expands, sinks, conduction c) contracts, rises, conversion d) contracts, sinks, contraption submit hint

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

Select all the correct answers. which three statements about electromagnetic radiation are true?

Both independent and dependent clauses