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How to structure a History essay
Structuring an essay can seem a daunting task, but it is absolutely fundamental to ensuring that your argument is strong. Once you become confident with it you...

Fluorescent tubes are filled with low pressure mercury, when an electric current is passed through, the electrons in mercury are excited and move to a high energy level, this high level state is unstab...

To find the factors of x³-7x-6, a method called equating coefficients can be used.

Firstly, set the equation to zero and find a suitable number which satisfies the equation, in...

initial speed: v =  72 km/h = 20 m/s. 
mass: m = 0.7 kg
time of the impact: t = 0.1 s
average force: F
The speed after impact is the same as initial speed, but velocity has got ...

B-Lymphocytes remain in the bone marrow until they mature and then spread throughout the body, concentrating in the lymph nodes and the spleen.They express a specific intrinsic protein called a B-cell rec...