1.Pieces of iron left in the rain corrode.
2.The bridge supported a weight of 250 tons.
3.A beam supported at both ends has a maximum bending moment at a point where the shearing force is zero.
4.The sample weighed on the scales is a metal.
5.The man weighed on the scales.
6.The bulldozer used 45 liters of petrol per hour.
7.The bulldozer used by the contractor had a maximum power of 200hp.
8.Balloons filled with gas can float on water.
9.Fire damaged the buildings.
10.The buildings damaged by fire will be reconstructed.
11.Light reflected in a mirror has the same wave length as the incident light.
12.The light passed through a prism.
13.The analysis carried out in the lab will be presented.
14.He carried out the analysis in the lab.
15.The analysis he carried out in the lab gave many useful results.