I got the first two questions correct but the third and fourth are giving me trouble. Keeps telling me the answer is incorrect. a.) Write an equation for the radial electric field in the region r<R1r<R1 in terms of QQ, rr, and Coulomb's constant kk. You may take the positive direction as outward. Er<R1 = k Q/r2b.) What is the radial electric field at the point r=0.5R1? Given your answer in units of kN/C, and take the positive direction outwards. E(0.5R1) = -111c.) What is the radial electric field at the point r=0.5(R1 + R2) Give your answer in units of kN/C. d.) What is the radial electric field at the point r=2R2? Give your answer in units of kN/C. A hollow non-conducting spherical shell has inner radius R1 =9 cm and outer radius R2 =19 cm. A chargeQ =-25 nC lies at the center of the shell. The shell carries a spherically symmetric charge density that increaseslinearly with radius,p = Ar forR1

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Answered: a.) Write an equation for the radial…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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I got the first two questions correct but the third and fourth are giving me trouble. Keeps telling me the answer is incorrect.

a.) Write an equation for the radial electric field in the region r<R1r<R1 in terms of QQ, rr, and Coulomb's constant kk. You may take the positive direction as outward.

Er<R₁ = k Q/r²

b.) What is the radial electric field at the point r=0.5R₁? Given your answer in units of kN/C, and take the positive direction outwards.

E(0.5R₁) = -111

c.) What is the radial electric field at the point r=0.5(R₁ + R₂) Give your answer in units of kN/C.

d.) What is the radial electric field at the point r=2R₂? Give your answer in units of kN/C.

A hollow non-conducting spherical shell has inner radius R1 =9 cm and outer radius R2 =19 cm. A charge
Q =-25 nC lies at the center of the shell. The shell carries a spherically symmetric charge density that increases
linearly with radius,
p = Ar for
R1 <r< R2
where A =21 µC/m*.
R

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