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Q. Two charged spherical conductors are connected by a long conducting wire, and a charge of 15 μC is placed on the combina- tion. One sphere has a radius of 4.05 cm and the other a radius of 6.05 cm.

What is the electric field near the surface of the sphere with the smaller radius?

Q. Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid to help them pollinate each other.How many plants x should she plant in each row so that her 25 plants end up in a square (i.e., x plants in each of x rows)?

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