Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 17 - Line and Surface Integrals - 17.1 Vector Fields - Exercises - Page 920: 52

Answer

(a) the vector field in (C) (b) the vector field in (B)

Work Step by Step

(a) According to the universal theory of gravitation, planet pulls other planet toward itself. So, the vector fields in Figure 16 that describes this fact is (C). (b) According to the electrostatic theory, positive charge is pulled toward the negative charge. Since $Q$ represents a negative test charge, $P$ is pulled toward $Q$. The vector fields in Figure 16 that describes this fact is (B).
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