Questions asked by Sydney

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• Can someone please prove this?
  
• Can someone please explain this?
  
• How to solve this?
  
• How do you fully dissolve a powder (e.g. sodium carbonate) into distilled water?
  
• How does a fire actually help magnesium react with oxygen to form magnesium oxide????????
  
• Can someone please show a worked solution for the whole of this question?
  
• Can someone please help solve this question (with a diagram)?
  
• The point P is equidistant from points A,B. Prove that if M is the midpoint of AB then PM is perpendicular to AB?
  
• How to prove?
  
• How to prove?
  
• How to find AE?
  
• How to find P in terms of k? (image of full question below)
  
• How do you find the gradient of a tangent? (full question below)
  
• How do you calculate the gradient of tangent to xy=4 and x^2=16y?
  
• How to answer this question? (photo for full question)
  
• How to find gradient with given acute angle? (full question in photo)
  
• Find the exact value of cos 210º - cot 210º??
  
• How do you prove the sine rule?
  
• Using the Kinetic Molecular Theory, how can I explain why "the total pressure of a mixture of gases is equal to the sum of the pressures exerted by each of the gases in the mixture"?
  
• I am doing an essay on an "examination of reasons why Britain lost India". What would be a list of reasons I could include in the paper? (in logical order - i.e. one reasons links to the next) So far I have ... (see below).
  
• A boat pushes off from a pontoon and travels 5m/s East while the pontoon floats away at 2m/s south. Calculate the velocity of the boat relative to the pontoon????? .