(Solved): (a) [1/1 pts] The figure shows two thin plastic spherical shells (shown in cross section) that are u ...

(a) [1/1 pts] The figure shows two thin plastic spherical shells (shown in cross section) that are uniformly charged. The center of the larger sphere is at \( \langle 0,0,0\rangle \); it has a radius of 12 cm and a uniform positive charge of \( 6.1 \times 10-9 \mathrm{C} \). The center of the smaller sphere is at \( \langle 25,0,0\rangle \mathrm{cm} \); it has a radius of 3 cm and a uniform negative charge of \( -5 \times 10-9 \mathrm{C} \). What is the electric field at location A ( 6 cm to the right of the center of the large sphere)? Neglect the small contribution of the polarized molecules in the plastic, because the shells are very thin and don't contain much matter. 1246.54 , \( > \) N/C (b) \( [0 / 1 \) pts \( ] \) What is the electric field at location B (15 cm above the center of the small sphere)? Again, neglect the small contribution of the polarized molecules in the plastic, because the shells are very thin and don't contain much < , \( > \) N/C (c) \( [0 / 1 \) pts \( ] \) What is the force on an electron placed at location \( B \) ? < , \( >\mathrm{N} \)