| Material | Y, N/m2 |
| Teflon | 3.7 x 108 |
| Nylon | 3.7 x 109 |
| Bone (compression) | 9.4 x 109 |
| Brick | 1.4 x 1010 |
| Pyrex glass | 6.2 x 1010 |
| Copper | 1.1 x 1011 |
| Steel | 2.0 x 1011 |
| Tungsten | 3.6 x 1011 |
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A long slender bar is made from an unknown material. The length of the
bar is 0.83 m, its cross-sectional area is 1.3 x 10-4 m2,
and its mass is 2.1 kg. A sound wave travels from one end of the bar to the other end
in 1.9 x 10-4 s. From which one of the materials listed in the table
is the bar most likely to be made?
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