Physics, 29.02.2020 19:27 conniehodson

Please help if u know this it’s in just a few hours

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I need the ans for q 2-8 & 2-9 & 2-11

Pleaseeee help if u know this it’s in just a few hours . I need the ans for q 2-8 & 2-9 & 2

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I need the ans for q 2-8 &a...