Which of these is a physical property of wood?
a. wood can burn.
b. wood can rot.
c. wood does not rust.
d. wood is softer than coal.

as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.