More About Network Cabling. The most commonly used types of network cable are the twisted pair, coaxial, Ethernet cross over, and fiber optic. The unshielded twisted pair (UTP) cable is used in many Ethernet networks. It has four pairs of wires that are housed inside of the lining of the cable.
Trench Suction. A third force that forms as a result of plate movement is known as trench suction. As a plate gets pushed back into the mantle (as we saw in slab pull), it is forced down at an angle. Not only does gravity pull it down in the slab pull model, but another force can act on it as well.
Extensional forces, those that pull the plates apart, and gravity are the forces that create normal faults. They are most common at divergent boundaries. These faults are normal because they follow the gravitational pull of the fault plane, not because they are the most common type. The Sierra Nevada of California and the East African Rift are two examples of normal faults.