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Stalin launched the purges, or the 'Great Terror' in 1934 to consolidate his power, and remove anyone he thought was a threat to both himself and the Communist party. Firstly, the Terror began with the as...

We solve inequalities exactly like normal equations except for Dividing by a Negative Coefficient where we Change the inequality directionE.gx+2>4 is ... x>2 (ask second ...

Deoxygenated blood enters at the vena cava. The right atrium receives the blood, and it then passes into the right ventricle. From there it goes to the lungs via the pulmonary artery. This brings the deox...

Firstly draw a free body diagram of the ladder, showing its weight and the contact forces at either end. We'll call end A the top end and end B the bottom end.
The next thing to do is to e...