Find three different solutions of the each of the following equations. 1.(3x+4y=7) 2.(y=6x) 3.(2x-y=7) 4.(13x-12y=25) 5.(10x+11y=21) 6.(x+y=0)
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Step-by-step explanation:
Longitudinalstress=
crosssectionalarea
force
\ \bf Force = 100kN \: or \: 10000N Force=100kNor10000N
\bf Area = 3.14 × {10}^{ - 4} {m}^{2}Area=3.14×10
−4
m
2
\ \bf Longitudinal \: stress = \frac{10000}{3.14 \times {10}^{ - 4} } Longitudinalstress=
3.14×10
−4
10000
\ \bf = \frac{100}{314 \times {10}^{ - 4} } =
314×10
−4
100
\bf \ = \frac{ {10}^{2} }{314 \times {10}^{ - 4} } =
314×10
−4
10
2
\bf \ = \frac{1}{314 \times {10}^{ - 2} } =
314×10
−2
1
\bf = \frac{1}{3.14}=
3.14
1
\bf \ = 0.3(approximately) =0.3(approximately)
∴ Stress acting on the rod = 0.3 Pa
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