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Question: please explain why in example 1 part b does t...

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Example 1. Find the work done by the electrostatic force field F-yi + zj +zk in carrying a positive unit point charge from (1, 1, 1) to (2, 4, 8) along a) a line segment b) the twisted cubic curve r ti + t2j + t3k Solution. a) The line segment is given parametrically by y dz+z dydz (3t +1) dt +(7t +1) 3 dt + (t+1) 7 dt, using (6) (31t+ 11) dt=_t2+11t| = 31+11=26.5 0 0 b) Here the curve is given by integral is t, y 12, 3, 1 t2. For this curve, the line 2 t2dt + t3.2t dt + t 3t2dt(t 3t3 + 2t4)dt ticket 1.pdf Aticket 2.pdf ticket 1.pdf ticket 2.pdf Show All

Please explain why in Example 1 part b does t go from 1 to 2. Why not from 0 to 1. Thank you so much.

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