List the planets of the solar system, from closest to farthest from the sun.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

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?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.