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Answer: "Ich spiele seit fünf Jahren das Klavier". A common mistake made by students of German would be to say: "Ich habe seit fünf Jahren das Klavier gespielt". This is because the co...
Whilst both are transfers of heat energy- conduction happens best in solids and convection best in fluids. Conduction occurs as atoms gain energy from the heat source and start to vibrate. In conduction p...
Integration can be viewed in many ways. The most common way to interpret an integral is to take the area under the curve you would like to integrate. For example Draw y=x, limit between 0 and 1, shade...
The boiling point of the halogens increases as you go down the group. The halogens exist as diatomic molecules, with both atoms sharing an electron to completely fill the outer shell. The increase in boil...
Price elasticity of demand = change in demand / change in price change in price = 7.20 --> 8.48 = 17.78% increasechange in demand = 97 million --> 76 million kilos = 21.6% decrease therefore PED = -...
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