Science, asked by tahirrabia15, 4 months ago

7
Explain why
i. the metal lid on a glass jar can be unscrewed easily if the jar is inverted for a
few seconds with the lid in very hot water,
ii. furniture may creak at night after a hot day,
iii. concrete roads are laid in sections with tarmac or a rubber compound between
them.​

Answers

Answered by Anonymous
3

Answer:

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Answered by MistyManna
2

Answer:

1) A tight metal lid of glass can be open when dipped in warm water because when we dip the lid is made of metal become soft and we are able to remove it quickly without much force. 2) Furniture make cracking noise more is nights when compared to day time. this time because at night temperature is colder when compared to day time. 3) If the road was pared in one piece it would have cracks all over the place in stead it is poured in smaller section with sum all gaps in between that allow the concerte to expand and contrack b due to heat changest.

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