Multiple Choice
Which statement is true about the unit vectors ,
and
?
A) Their directions are defined by a left-handed coordinate system.
B) The angle between any two is 90 degrees.
C) Each has a length of 1 m.
D) If is directed east and
is directed south,
points up out of the surface.
E) All of the above.
Correct Answer:

Verified
Correct Answer:
Verified
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