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Question: all parts pls...

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Find an expression for the electric field strength on the axis of the rod at distance r from the center Review Express your answer in terms of the variables L, Q, r, and appropriate constants. The figure (Figure 1)shows a thin rod of length L with total charge Q. Submit Request Answer Part B Verity that your expression has the expected behavior if rI Express your answer in terms of variables Q, r and constants π, eo- Figure 1of1 > E- Submit Part C Evaluate E at r = 4.4 cm if L = 5.0 cm and Q = 2.9 nC Express your answer to two significant figures and include the appropriate units.all parts pls

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