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The 1929 Wall Street Crash caused huge economic problems for Germany. Hitler and his party capitalised on the social unrest generated by these economic problems to secure support. He was also a very motiv...
They have multiplied the fractions correctly but they are still incorrect. The student has assumed that a bag with 60% green beads contains 10 beads. If the bag had 100 beads and 60 were green, 60% of the...
The diaphragm contracts and flattens out, increasing the volume of the thorax and decreasing the pressure in there. This causes a pressure gradient between the thorax and the outside air, so air flows int...
Recall the product rule for differentiation. If y=uv, where u and v are functions defined by functions of x, then we can take the derivative of y as: y'=u'v+v'u () (where ' denotes the derivative) ...
The element carbon can exist as a few different "isotopes" - all this means is that the number of neutrons in the nucleus can vary to give atoms that behave the same way chemically so are still ...
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