Question

collect informaton about the substances using to reduce the friction in different machines and prepare a report on it.

Answer 1

Lubricating oil is ans

Answer 2

☺☺ Hi dear ☺☺

◆◆ Here is ur ans◆◆


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↪ Their are many substances used for reduce the friction of substances....
They are as follows...
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↪↪ Galvanisation....salt bridge usage....using of lubricants such as oil and grease...



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☺☺ hope it hlps ☺☺