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9702/O/N/2024/P11/Q.23/Deformation of solids/A level physics past paper question
Автор: Rabionics
Загружено: 2026-02-01
Просмотров: 4
Описание:
A wire consists of a 3.0 m length of metal X joined to a 1.0 m length of metal Y.
The cross-sectional area of the wire is uniform.
A load hung from the wire causes metal X to extend by 1.5 mm and metal Y to extend by 1.0 mm.
The same load is then hung from a second wire of the same cross-sectional area, consisting of a 1.0 m length of metal X and a 3.0 m length of metal Y.
Both wires are extended within their limit of proportionality.
What is the total extension of this second wire?
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