Water flows out through a circular pipe, whose internal diameter is 2 cm, at the rate of 0.7 m per second into a cylindrical tank, the radius of whose base is 40 cm. By how much will the height of water rise in half an hour?
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length of water flowing in 1 second, h = 0.7 m = 70 cm. =(70π×60×30)cm3=(126000π)cm3. Radius of cylindrical tank, R = 40 cm. Let the rise in level of water be H cm
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Thermodynamics deals with the concepts of heat and temperature and the inter-conversion of heat and other forms of energy. The four laws of thermodynamics govern the behaviour of these quantities and provide a quantitative description. William Thomson, in 1749, coined the term thermodynamics. The word “Thermodynamics” is derived from two Greek words “thermes” and “dynamikos” which means heat and powerful respectively.
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