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This is an application to Faraday's and Lenz' laws of electromagnetic induction. So as the magnet moves into the coil, the magnetic field from the magnet moves through the coil, therefore there is a chang...

To centre-align an element using CSS, we will make the margins either side of the element of equal width. First, ensure that the elements width is set to less than 100%.width: 80%; This is important as ot...

[Point 1]
In 'Macbeth', one of the ways in which guilt is presented is through the reoccurring image of blood. In Act 2 Scene 2, the blood on Macbeth’s hands after hi...

To find the equation of the tangent line to the curve y = 2x² - 4x + 3, we have to differentiate. Taking each part of the equation separately, we can calculate dy/dx = 4x - 4. By differentiatin...

y = 1/x^2 is the same asy = x^-2 , now we can use the standard differentiation formula nx^n-1 to gety = -2x^-3y = -2/x^3