The diagram shows the electric field lines around two charges. Based on the field lines, what is the best description of the cha
rges ?
A.) they are negative, and they repel
B.) the left is negative and the right is positive, so they attract.
C.) the left is positive and the right is negative, so they attract.
D.) they are positive, they repel
A.) they are negative, and they repel
B.) the left is negative and the right is positive, so they attract.
C.) the left is positive and the right is negative, so they attract.
D.) they are positive, they repel
2 answers:
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Answer:
Explanation:
We shall take the help of vector form of displacement . Taking east as i and north as j
4.0m N = 4 j
7.5 m E = 7.5 i
6.8 m S = - 6.8 j
3.7 m E, = 3.7 i
3.6 m S = - 3.6 j
5.3 m W = - 5.3 i
3.7 m N, = 3.7 j
5.6 m W = - 5.6 i
4.4 m S = - 4.4 j
4.9 m W = - 4.9 i
Total displacement = 4j +7.5 i -6.8j+3.7i-3.6j-5.3i+3.7j-5.6i-4.4j-4.9i
= -4.6 i -7.1 j
magnitude of displacement =
= 8.46 m
Direction
Tanθ = 7.1/ 4.6
θ = 57⁰ south of west .
distance walked = 4+7.5 +6.8+3.7+3.6+5.3+3.7+5.6+4.4+4.9
= 49.5 m