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Alex and Billy are launching the air rockets they made by launching them using a bike pump. They each have a rocket, a launchpad, a bikepump connected to it and their teacher Daniel has two stopwatches. T...

Firstly a waterfall is defined as a cascade of water falling from a height over a steep incline or precipice. It is typically found in the upper course of a river and in formed via vertical erosion. They ...

(Extracts from a longer answer)The tragedy in ‘La Belle Dame’ could be argued to be the knight’s sitting on a ‘cold hill side’ waiting for his love. At a deeper level the tragedy in ‘La Belle Dame’ emerge...

Classical conditioning is learning through association. For example, Pavlov conditioned dogs to salivate when they heard the sound of a bell by associating food with the sound of the bell. On the other ha...

Rearrange x - 3y = 9 to make x the subject by adding 3y to both sides of the equation, giving x = 9 + 3y. Substitute the value of "x" in the second equation for "9 + 3y", giving: 5(9 ...