Two charged balloons 2.1 * 10è¹ meters apart have a repulsive force of 1.3 * 10è¹ newtons. the charge on one balloon is 8.2 * 10è¥ coulombs. what is the charge on the other balloon? (k = 9.0 * 10© newton·metersæ/coulombæ)

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?