Micha7severide Micha7severide

10-02-2022
Physics

contestada

this is the question on the attachment

this is the question on the attachment class=

Respuesta :

XxAtomicxX XxAtomicxX

10-02-2022

Explanation:

a) to allow for the metal tracks to expand on hot days.

reason:- as you have seen in summer the sunlight fall on these tracks and make the metal expand and fill that gaps.

hope this helps you

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