A vertical steel beam in a building supports a load of 7 x 10^{4} N. If the length of the beam is 4 m and its crosssectional area is 8 x 10^{3} m^{2}, find the distance that the beam is compressed along its length.
Young's modulus for steel is
3.75 x 10^{2} m 

2.25 x 10^{5} m 

1.75 x 10^{4} m 

1.75 x 10^{+2} m 

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