A vertical steel beam in a building supports a load of 7 x 104 N. If the length of the beam is 4 m and its cross--sectional area is 8 x 10-3 m2, find the distance that the beam is compressed along its length.

Young's modulus for steel is

Y = 20 x 1010 Pa

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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