1)To design a Gold chain a goldsmith has taken 2 gram of gold (22 K) wire with 4 mm diameter. Further, he drawn that as wire having diameter of 3 mm by using respective die. Now find the following, [Density of 22K Gold : 15.6 g/cc] a)In making of jewelry (22K) how much percentage of other metals should be added with gold. b)If the material can be readily drawn into wire then the property associated with that is? c)Find the volume of the gold used.

1)To design a Gold chain a goldsmith has taken 2 gram of gold (22 K) wire with 4 mm diameter. Further, he drawn that as wire having diameter of 3 mm by using respective die. Now find the following, [Density of 22K Gold : 15.6 g/cc] a)In making of jewelry (22K) how much percentage of other metals should be added with gold. b)If the material can be readily drawn into wire then the property associated with that is? c)Find the volume of the gold used.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.4P

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Nanotechnology, the field of building ultrasmall structures one atom at a time, has progressed in recent years. One potential application of nanotechnology is the construction of artificial cells. The simplest cells would probably mimic red blood cells, the body’s oxygen transporters. Nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person’s bloodstream. If the person needed additional oxygen—due to a heart attack or for the purpose of space travel, for example—these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. Suppose that the nanocontainers were cubic and had an edge length of 25 nanometers. What is the volume of one nanocontainer? (Ignore the thickness of the nanocontainer’s wall.)
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MIME2204– ENGINEERING MATERIALS