The graph below shows the tensile stress against strain for a glass fibre. stress/10°Pa 100 80 60 40 20 10 15 strain/10-4 Use this graph to calculate (i) The young modulus for glass The strain energy per unit volume just before fibre breaks, i.e where the graph line ends. State your answer with suitable SI unit. (iii) The extension just before a fibre ofunstretched length 0.50 m hreaks
The graph below shows the tensile stress against strain for a glass fibre. stress/10°Pa 100 80 60 40 20 10 15 strain/10-4 Use this graph to calculate (i) The young modulus for glass The strain energy per unit volume just before fibre breaks, i.e where the graph line ends. State your answer with suitable SI unit. (iii) The extension just before a fibre ofunstretched length 0.50 m hreaks
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Transcribed Image Text:The graph below shows the tensile stress against strain for a glass fibre.
stress/10 Pa
100
80
60
40
20
10
15
strain/10-4
Use this graph to calculate
(i)
(ii)
The young modulus for glass
The strain energy per unit volume just before fibre breaks, i.e.
where the graph line ends. State your answer with suitable SI
unit.
(iii)
The extension just before a fibre of unstretched length 0.50 m
breaks.
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