There are three classes of levers, depending on the relative positions of the effort is applied, load, and fulcrum. 1  First-class levers have the fulcrum located between the load and the effort (LFE). If the two arms of the lever are of equal length, the effort must be equal to the load.
1 Ebro: From the 120 Foot level of the new cell tower, This is Ebro.
The Ebro (Spanish, Aragonese and Basque: ) or Ebre (Catalan: ) is one of the most important rivers on the Iberian Peninsula. It is the second longest river in the Iberian peninsula after the Tagus and the second biggest by discharge volume and by drainage area after the Duero.