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Once you note that the height is constant, the key thing to remember here is that there is no unbalanced force acting on the mass. By this, I mean that since the mass is not accelerating (it is actually a...

My recommendation would be to broaden your net. Do not restrict yourself to the traditional readings of "Shakespeare" or "Jane Austen". There are hundreds of academic essays written on...

A simple way to prove this is to sub in the values that we are given. so f(x) will represent our equation x^3-3x+1 (that is f(x) = x^3-3x+1)f(-2) = -1 < 0f(-1) = 3 > 0The first thing we notice is th...

Start off with:x²+x=12Subtract 12 from both sides:x²+x-12=0Factorise:(x-3)(x+4)=0Solution is therefore:x=3 or x=-4

As you go across the period, the nuclear charge (or number of protons increase) but the shielding (or the number of shells) stays the same as all of the elements are on the same period. This causes the nu...