b- The total volume of Antarctic ice is about 3.01 x 10° km. If all the Antarctic ice melted completely, you would estimate the height, h, in sea level that would result from additional liquid water entering the oceans. The density of snow and fresh water is 0.92 g/cm3 and 1.0 g/cm3, respectively. Suppose the world's oceans cover an area, A, of about 3.62 x 10° km and that the increase in ocean volume can be calculated as A x h?

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?