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The minimum point for the curve can be found by finding the point at which the gradient is zero, where the curve is instantaneously level, before increasing again. This can be done by differentiating the ...

As this is an isolated system and a simple pendulum starting at rest, at maximum height, all the energy is in potential energy. The known equation for potential energy is simply mgh (mass x acceleration d...

This could be a speaking question, where the student is asked to discuss the positives and negatives of automation, and to take one of these sides during a debate. I would go through generally useful spea...

Firstly, I would discuss the various factors to consider with my student. I would go through all possible points of discussion, and then together we would decide on the three main factors. I would then di...

Step 1. Draw Pascal's triangle to find the coefficients. 1; 1 2 1 ; 1 3 3 1 ; 1 4 6 4 1. As you can see, each row starts and finishes with 1. The numbers in between are worked out by add...