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This question will probably be worth around 6 marks in the exam depending on what exam board is being sat. A general rule of thumb is that if a question is worth 6 marks then 6 pieces of information will ...
Part iGravitational Potential Energy (GPE) = mass x gravitational acceleration constant x heightGPE = 2 x 9.81 x 10 = 196.2JPart iiConservation of energy states that the sum of the GPE and K...
We want to show that this gives an even number, so we need to get it into a form that it is 2 multiplied by some positive integer. We start by expanding the (n-2)2 out, remember that (n-2)...
Hard water tastes better.
Start by selecting useful information in the text.time = 7 minutesspeed = 60km/h to the nearest 5km/hmaximum possible distance travelled = ? kmWe know a time and speed and want to know a distance. So we c...
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