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3. [-IB Points] DETAILS MY NOTES 023 One mole of tungsten (6 X 1 atoms] has a mass of 184 grams, and its density is
3. [-IB Points] DETAILS MY NOTES 023 One mole of tungsten (6 X 1 atoms] has a mass of 184 grams, and its density is 19.3 grams per cubic centimeter, so the oenterto center distance between atoms is 2.51 3-: ll!"10 m. You have a long lhin bar of tungsten, 2.2 m long, with a square cross section, 0.09 cm on a side. You hang \"dwe rod vertically and attach a 153 kg mass to the bottom, and you observe that the bar becomes 1.13 cm longer. From these measurements, it is possible to determine the stiffness of one interatomic bond in tungsten. Bottom of win: 1) what is the spring sffness of the entire wire, considered as a single macroscopic (large scale). very stiff spring? k. = E mm 2) Hay.I many sidebyside atomic chains {long springs) are there in this wire? 1his is the same as the number of atoms on the bottom surface of the tungsten wire. Note that the cross-sectional area of one tungsten atom is {2.51 x 10'1\"}2 m2. Number of side-byside long chains of atoms = |:| 3) Hey.I many interatomic bonds are there in one atomic chain running the length of the wire? Number of bonds in total length = 4) What is the stiffness of a single interatomic "spring"? 1..- = |:| mm An interatomic bond in tungsten is stiffer than a slinky, but less stiff \"man a pogo stick. The stiffness of a single interatomic bond is very much smaller than the stiffness of the enre Iwire. Adtion Mammals E3 eBook smmmm
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