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Answer:
Companies are combining their online business activities with their existing physical presence in order to lower costs of their operations. When both these things are combined labor costs are reduced because with online presence the company has to have limited number of branches, inventory costs are reduced because additional inventories for every physical outlet is not required and delivery costs are reduced because now company don't have to supply the things to all the outlets on regular basis.
Trust of the people is also improved because mostly people are reluctant to order from the brands that only have their online store and donot have any physical presence. Value added services are provided by a company who have both online and offline presence like home delivery and customized offerings.
Answer:
volume fraction of fibers is 0.4
Explanation:
Given that for the aligned carbon fiber-epoxy matrix composite:
Diameter (D) = 0.029 mm
Length (L) = 2.3 mm
Tensile strength (
) = 610 MPa
fracture strength (
) = 5300 MPa
matrix stress (
) = 17.3 MPa
fiber-matrix bond strength (
) = 19 MPa
The critical length is given as:

Since the critical length is greater than the length, the aligned carbon fiber-epoxy matrix composite can be produced.
The longitudinal strength is given by:

making Vf the subject of the formula:

Vf is the volume fraction of fibers.
Therefore:

volume fraction of fibers is 0.4
Answer:
461.65 KJ/Kg
Explanation:
In this question, we are asked to calculate the values of heat transferred in the process.
Please check attachment for complete solution and step by step explanation