A) what is the average friction factor for the sailboard? b) what is the average shear stress on the sailboard? c) how much power must the wind provide to propel the sailboard? (hint: power = force*distance/time)

their crystal patterns have been disrupted by stress

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.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

option number c is the right answer.