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The first step to any problem is to draw a suitable diagram. Here we draw a free body diagram, marking the angle x, the friction force F, normal reaction force N and weight of the block Mg. "Stat...
Total revenue = Units sold x selling priceSo £12.50 x 3000 = £37,500Fized costs = £15000Vaeiable costs = £32,000 - £15,000 = 17,000
An increase in pressure will cause the equilibrium to shift towards the side with the smaller number of molecules. A decrease in pressure causes the equilibrium to shift towards the side with larger numbe...
Electrons occupy energy levels/shells. Electrons occupy the lowest level (first one from the nucleus) first which can occupy a maximum of 2 electrons. After the first level, electrons fill up the other sh...
Plants store glucose produced by photosynthesis in the form of starch. To test the presence of starch in plants, first heat a leaf in boiling water for 30 seconds followed by boiling it in ethanol for a f...
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