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The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons. So the top number tells us how many protons and neutrons there are in an atom of that e...

So when we give an antibiotic (a drug that kills bacteria) it will kill all of the bacteria that are sensitive to it, if it's taken correctly. A few bacteria may have an adaptation allowing them to resist...

The first tip I would give you is that showing you have had many experiences in your life is definitely important, however it would be even better if you could explain what you learned from them and in pa...

The aim of this maths question is to find the two unknowns, x and y, by using simultaneous equations. Simultaneous equations can be solved by either using the elimination method or the substitution method...

Integrating by parts requirez recognition that ln(x) is equal to ln(x) multiplied by 1. Making u equal to ln(x) should make the integration trivial. Differentiation is a simple use of the product rule and...