If volume expansion coefficient of a solid is 7.2 x 10^-5/°C, what is the value of its linear expansion coefficient?
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A simple garden syringe used to produce a jet of water consist of a piston of area 4cm² which moves in horizontal cylinder which has a small hole of area 4mm² at its ends. If the force on piston is 50N, calculate the value of the speed at which the water is forced out of the small hole, assume the speed of the Pistons negligible
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Answer:
Coefficient of given,
Superficial expansion β=20×10
−5
/
0
C
We know that,
6α=3β=2γ
Where α is linear expansion coefficient.
∴6×2×10
−5
=3β
⇒β=2×2×10
−5
=4×10
−5
/
0
C
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