Multi-processors computer operates in a server room in a building of weather station located in the mountains at altitude of 3400 m computer is cooled by two 2 w fans located at the outlet from chassis. the thermal power of each processor is 65 watt. the temna pressure in the server room are 25°c and 66.63 kpa, respectively. the temperature and air velocity at the outlets from the chassis are so 70.6 m/min, respectively, while diameters of fans are 0.1 m. determined the number of processors in the computer. neglect heat in surroundings from the computer and the change in kinetic energy of cooling air as well as assume no variation in the statie nr may be treated as an ideal di-atomic gas with gas constant 287 j/(kgk).

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

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tony (lordcaos066)

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

b.final

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.