The surface Pension y
obs on the density, e, acceleration provide
la and the height, he use method of timen
Bions to derive the relationship between
here quantities

no

sodium is solid at rt

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

snell's law

refractve index = sin incidence / sin refraction

a. spokes of a wheel.

as indicated in the question radial contains rad, also found in radius, so the fracture's would span the radius.