1) The Young\'s modulus for steel is 20.7 x 1010 N/m2. How much will a 2 mm diam

Question

1) The Young's modulus for steel is 20.7 x 1010 N/m2. How much will a 2 mm diameter wire, 16 cm long, be strained (answer in meters) when it supports a load of 450 N?

2) A pressure vessel is being designed to contain argon. It is lined with a membrane of a material through which the diffusivity of argon at 25 o C is 3.091*10^-11 m2/s. The concentration at the inner surface of the membrane is maintained constant at 3e-05 kg/m3. The concentration at the outer surface is maintained constant at 7e-06 kg/m3. The membrane thickness is 4.385e-06 m and its total area is 5.8 m2. How much argon escapes in one hour? Express your answer in kg.

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