Physics, 26.03.2021 14:00 zaylencollins55

half life, for my physics but pretty sure it involves maths. you don’t have to do them all i’m just confused how to work it out.

half life, for my physics but pretty sure it involves maths. you don’t have to do them all i’m just

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half life, for my physics but pretty sure it involves maths. you don’t have to do them all i’m just...