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1)The non-contact force that would be best suit in lifting and placing large amount of iron scraps .....{option •magnetic,•gravitational•electrostatic•muscular}
2)All contact and non-contact forces exhibits all effects of force. [True or false]
3)Friction is a necessary evil.explain....[In detail]
the last answers must be in detail but in simple words and language
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friction is really necessary because it help us in walking without friction we can't even walk but on the other hand it also damages the expensive machines so it is a necessary evil
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