Consider a thin-walled cylindrical tube having a radius of 65 mm that is to be used to transport pressurized gas. if inside and outside tube pressures are 100 and 1.0 atm (10.13 and 0.1013 mpa), respectively, compute the minimum required thickness for each of the following metal alloys. assume a factor of safety of 3.5.

Missing part of the question:

Find the missing table in the attached file. The table was used for the calculation. The below question (b) is also the missing part of the question.

(b) A tube constructed of which of the alloys will cost the least amount?

The thickness for each of the metal alloys are given below.

(a)

Steel (plain) thickness = 6.25 mm

Steel (alloy) thickness = 2.28 mm

Cast iron thickness = 10.14 mm

Aluminum thickness = 8.30 mm

Magnesium thickness = 13.04 mm

(b) the alloys will cost the least amount is steel (alloy) which $33.8

Explanation:

Cost of each metal alloy

Steel (plain) = $34.43

Steel (alloy) = $33.80

Cast iron = $79.24

Aluminum = $73.22

Magnesium = $159

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explanation: