????? what do u mean tier 2
Answer:
I did not what is it about?
Answer:
Explanation:
Diffusion flux of a gas, J is given by
where
is permeability coefficient,
P is pressure difference and x is thickness of membrane.
The pressure difference will be 10,000 Pa- 3000 Pa= 7000 Pa
At 298 K, the permeability coefficient of water vapour through polypropylene sheet is
Since the thickness of sheet is given as 1mm= 0.1 cm then
Therefore, the diffusion flux is
Answer:
B. operator error or misuse
Explanation:
A product is a failure if it is not able to achieve the anticipated life cycle as expected by the organization.
In such a case, there is a withdrawal of the product from the market as a result of its ultimate failure of a product to achieve profitability.
Four common causes of product failure are poor design, poor construction, poorly communicated operating instructions, and <u>operator error or misuse</u>
Answer:
The maximum length of the specimen before the deformation was 358 mm or 0.358 m.
Explanation:
The specific deformation ε for the material is:
(1)
Where δL and L represent the elongation and initial length respectively. From the HOOK's law we also now that for a linear deformation, the deformation and the normal stress applied relation can be written as:
(2)
Where E represents the elasticity modulus. By combining equations (1) and (2) in the following form:

So by calculating ε then will be possible to find L. The normal stress σ is computing with the applied force F and the cross-sectional area A:



Then de specific defotmation:

Finally the maximum specimen lenght for a elongation 0f 0.45 mm is:
