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  1. Hi, I'm doing an IA on the volume and surface area of a torus, and I've already derived the equations needed. However, these equations and their derivations are widely found across the internet, so do you think it would turn up as plagiarisation? :0 Also, I'm thinking on optimising surface area with a fixed volume, meaning having the largest surface area with the smallest volume. How do you think I can do this, and whether the equations that I have just derived can play a part in this? Thanks a ton
  2. Hi guys! For my IA, I'm investigating on the relationship between time fall a parachute to fall and its surface area, but I can't get a linear relationship. The parachute didn't reach the terminal velocity, so the velocity is changing when the A is changing and it's also accelerating downwards. What can I do? Help please!!!!!
  3. Hi, I'm doing my Math HL IA on finding the volume and surface area of a frustum (from a cone). I'm determining the volume in three ways, out of which one is integration. I'm calculating the surface area in two ways, one of which uses integration too. However, though the formula for surface area is out of the HL syllabus, I feel like this is a very simple idea, and might not fulfill the 'Use of Mathematics' criterion as formulae for the volume and S.A. is available online. My Math teacher says this is sophisticated enough, though I feel the opposite. I would like an opinion on this topic a
  4. Hi All, So, I've been recently working on a prac involving how the rate of reaction (between Magnesium and Hydrochloric acid) can be affected by increasing surface area of the Mg ribbon. And, whilst I don't have any issues discussing the prac itself and the results it produced, I haven't been able to find any literature values at all. I've really tried looking everywhere, and I've only gotten as far as finding a website which showed me some values for varying HCl concentration, not Mg surface area (by cutting up the ribbon into different pieces). And as much as I'd like to, I can't base
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