Determine the cohesive strength of glass fibre, if E = 90 GPa, Surface – McqOptions

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1.	Determine the cohesive strength of glass fibre, if E = 90 GPa, Surface energy = 1.2 Jm^-1/2 and a₀=0.18 nm?
A.	29.5 GPa
B.	10 GPa
C.	24.5 GPa
D.	150 MPa
Answer» D. 150 MPa

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