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Fractional distillation uses a fractional distillation tower, split into different layers each with a different temperature. It is used to sperate crude oil into the many different fuels used commonly in ...

Firstly the gold foil was flattened so that it was one atom thick. The researchers knew that alpha particles were positively charged, and so would be repelled by other positive charges. At the atomic scal...

Q: Northern Bank has two types of account. Both accounts pay compound interest. Cash savings account: Interest 2.5% per annum Shares account: Interest 3.5% per annum Ali invests £2000 in the cash savings ...

We use the future simple when we are thinking of doing something - by adding the correct endings to the stem of the verb.The simple future is for when we are SURE we will do something (it is definite) and...

Firstly, you need to differentiate the curve y. Using the equation dy/dx of sinkx= kcoskx, you need to differentiate 5sin3x first. So, as k=3 in this example, the answer is 5(3cos3x) which is equal to 15c...