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3 years ago

If length of wire is doubled keeping the diameter constant ,its Youngs modulus will be

Physics

1 answer:

Luda [366]3 years ago

3 0

Answer:

Y = Stress / Strain = (F / A) / (l / L) where l is the change in length

Since L is doubled and A remains the same one would expect l, the change in length to also double so Y remains the same.

As an example think of hanging a weight from a spring and the same weight from a similar spring of twice the length - one would expect the longer spring to show twice the extension of the shorter spring.

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3 years ago

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Explanation:

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3 years ago

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4 years ago

If a boat and its riders have a mass of 900 kg and the boat drifts in at 1.4 m/s how much work does sam do to stop it?

Rama09 [41]

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$K_f = 0 J$
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For the law of conservation of energy, the work done by Sam is the variation of kinetic energy of the system:
$W=K_f-K_i =0-882 J=-882 J$
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3 years ago

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3 years ago

If length of wire is doubled keeping the diameter constant ,its Youngs modulus will be​

If length of wire is doubled keeping the diameter constant ,its Youngs modulus will be