It takes 40 j to push a large box 4 m across a floor.
assuming the push is in the same direction as the move, what is the magnitude of the force on the box?

a) 40 nb) 4 nc) 160 nd) 10 ne) none of the above

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?