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the pumps coefficient of performance is 38 and the heat pumpdelivers 754 mt of thermal energy to the building each hour
ammonia is kept at 15degc in a 100l flask with a pressure of 195 atm what is the pressure in the flask if the
an ordinary glass is filled to the brim with 350 ml of water at 100 degrees celsius if the temperature decreased to 20
the average speed of a nitrogen molecule at 25 0c is 515 ms what is the average speed of an ammonia mole at that
ed rode a bicycle thatwas pulled by an automobile in this way ed rode his bike 2000 min 683 seconds suppose the angular
what is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n
determine the molarity of a solution made by dissolving 248 g of sodium chloride in 7500 ml of
in coming to a stop a car leaves skid marks 92m lng on thehighway assuming a deceleration of 700 ms2 estimate the speed
what patterns do you notice about the charges of the ions with respect to their positions in the periodic table or
a world-class sprinter can burst out of the blocks to essentiallytop speed of about 115 ms in the first 150 m of the
calculate the volume of 0188 m hno3 required to neutralize 250 ml of 0250 m baoh2
a car traveling 88 kmh is 110 m behind a truck traveling 75 kmh how long will it take the car to reach the
a jet moving 5000 kmh due east is in a region where the windis moving at 1200 kmh in a direction 3000 degrees north of
carbonated beverages like coke pepsi and 7-ip contains acids usually phosphoric and or citric acid propoese a
according to a rule-of-thumb every five seconds between a lightningflash and the following thunder gives the distance
using a ph meter the ph of cranberry juice cocktail was found to be 2046 which indicate that the h3o3047 x10-3 m
to weigh a fish a person hangs a tackle box of mass 35 kilogramsand a cooler of mass 5 kilograms from the ends of a
the armature of a shunt motor has a mass of 250 kg and a diameter of 30 cm assume the mass of the amature is evenly
an attempt at synthesizing a certain optically active compound resulted in the mixture of its enantiomers the mixture
a block of mass 25 kg is placed on a horizontal table the coefficient of friction between block and table is 020 this
the cofficient of friction between the 3 kg blockand surface in figure is04the system starts from rest what is the
a plane is inclined at an angle of 30 degrees with respect tothe horizontal a block of mass 60 kg is placed at
a gas mixture with a total pressure of 740 mmhg contains the following gases at the indicated partial pressures co2 115
suppose one of the global positioning system satellites has aspeed of 446 kms at perigee and a speed of 364 kms at
two paticles of equal mass have different velocities and acceleration of one particle is zero what is the movement