Multiple Choice
Two vectors 
and 
are given by 
and 
. The scalar product of 
and a third vector 
is −16. The scalar product of 
and 
is +18. The z component of 
is 0. What is the magnitude of 
?
A) 7.8
B) 6.4
C) 3.6
D) 5.0
E) 4.8
Correct Answer:
Verified
Correct Answer:
Verified
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