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Initially the momentum is zero.
Due to conservation of momentum, the alpha particle and radium nucleus must gain equal but opposite momentum.
The mass of the radium nucleus ...
x2 - 9x ≤ 36
1. Draw a graph.
y = x2 - 9x and y = 36
2. Find the points of intersection by solv...
Homeostasis is the process of maintaining a constant internal environment in the body.
An example of this is maintaining the temperature of the body. Human body temperature must be mainta...
1. The Essay QuestionThe first thing you should do when you get into the exam is to copy out the essay question title onto the top of your answer sheet. It may waste a minute or tw...
People doing mathematics at A-Level will be familiar with the concept of using x and y coordinates in the cartesian coordinate system. But introducing the idea of the polar coordinate system can be confus...
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