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Momentum before the collision or separation must equal the momentum afterwards, this is called the conservation of momentum. The situation before had the skateboarder on the skateboard, both stationary. As m...

It is important to remember that, though you may have a written record or transcript, you must not approach it as a written text. If you are analysing spoken language it is crucial to show the examiner or ma...

Integrating the equations: x 2 + 4x + 3 dx. To integrate, the method is to look each parts of the equation, e.g. the x 2 firstly. We would add 1 to the power to get x 3 . Then we would divide this by our new...

High absorption of salt from the diet results in a higher than normal concentration of salt (sodium chloride) in the blood plasma entering capillaries. This means that there is a higher concentration of sodi...

case study: Montserrat Primary effects: 66% of island was covered in ash, 23 people died, buildings and infrastructure damaged Secondary effects: tourism industry struggles, people left the island and still ...