Which of the following best describes diffraction? A.
the bending of a wave as it reflects from a rough surface

B.
the bending of a wave as it reflects from a smooth surface

C.
the bending of a wave as it crosses the boundary between two materials

D.
the bending of a wave as it goes around, or passes through, openings in a barrier

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i just did this and got a 100.

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular