Where does subduction occur?

a. at most normal faults
b. where crust is destroyed
c. where crust is formed
d. near transform boundaries

What will a positive and a negative charge do if they are separated from each other?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.