Why surface waves cause the most damage to property?

What changes would result in a decrease in the gravitational force between two objects? check all that apply.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?