Engineering, 15.10.2019 19:20 AutumnJoy12
One mole of tungsten (6 1023 atoms) has a mass of 184 grams, and its density is 19.3 grams per cubic centimeter, so the center-to-center distance between atoms is 2.51 10-10 m. you have a long thin bar of tungsten, 2.9 m long, with a square cross section, 0.12 cm on a side. you hang the rod vertically and attach a 265 kg mass to the bottom, and you observe that the bar becomes 1.45 cm longer. from these measurements, it is possible to determine the stiffness of one interatomic bond in tungsten. 1) what is the spring stiffness of the entire wire, considered as a single macroscopic (large scale), very stiff spring? ks = n/m 2) how many side-by-side atomic chains (long springs) are there in this wire? this 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 10-10)2 m2. number of side-by-side long chains of atoms = 3) how 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 "sprin
Answers: 1
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 19:10
How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?
Answers: 2
Engineering, 04.07.2019 19:10
An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed
Answers: 3
Engineering, 04.07.2019 19:20
Heat transfer by is the fastest mode of heat transfer that requires no intervening medium. a)-conduction b)-convection c)-radiation d)-conduction and convection
Answers: 1
One mole of tungsten (6 1023 atoms) has a mass of 184 grams, and its density is 19.3 grams per cubic...
Social Studies, 29.09.2019 06:30
Biology, 29.09.2019 06:30
Mathematics, 29.09.2019 06:30
Mathematics, 29.09.2019 06:30
History, 29.09.2019 06:30
Mathematics, 29.09.2019 06:30
Health, 29.09.2019 06:30
Biology, 29.09.2019 06:30
English, 29.09.2019 06:30