The forces acting on a child sitting in a seat are described by the free-body diagram shown. fn=100n up and down fg=-100n what is the net force acting on the child? a.–100 n b.0 n c.100 n d.200 n

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates