Addition by Components: The components of vectors 
and 
are given as follows:Ax = 7.6 Bx = -5.1Ay = -9.2 By = -6.8What is the magnitude of the vector difference 
- 
?
A. 13
B. 3.5
C. 16
D. 170
E. 3.4
Answer: A
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m what is the energy density in the electric field?
a. 
b. 
c. 
d. 
e. 
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