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For an object moving in a circular path, the centripetal force is any force which acts towards the centre of this circular path. This means it acts perpendicular to the direction of forward motion.

Learning the facts of case studies can seem very daunting at the beginning - with all of the names, dates and facts and figures. But, really, it's no different to learning anything else!

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Primary - The sequence of amino acids in the Protein, defined by the DNA sequence coding for the protein. 

Secondary - Any folding or coiling within the protein which are stabilised by hy...

It is first important to get the equation to equal 0, so to do this you minus 12 from each side of the equals symbol, giving youX^2 +13X+36=0Now it is time to think about factorising!The best trick for th...

The way that papers are set is that you usually can allow just over a minute for each mark. This means if a question is 6 marks, it should take about 6 minutes to answer. It is generally a good idea to be...