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a coal with the following composition is burned at a rate of 15000 kg per hour in a power plant the excess air used was
a 55 kg meteorite buries itself 45 m into soft mud the force between the meteorite and the mud is given by fx 610
you have been asked to review the calculations of an assistant with respect to the calculation of the internal energy
the primary winding of an electric train transformer has 400 turns and the secondary has 50 if the input voltage is
problemdifferentiating the above equation with respect to t twice and using equation 1 leads tointegrating the first
a 408g sample of a compound contains 302g of oxygen what is the empirical
in a television set the power needed to operate the picture tube comes from the secondary of a transformer the primary
a 30 nf capacitor is in series with a 140 m ohms resistor the capacitor is initially uncharged when the series
when iron fe crystallizes it forms body centered cubic cells the unit cell edge is 287 pm calculate the density of iron
a 150 k resistor and a capacitor areconnected in series and then a 120 vpotential difference is suddenly appliedacross
how many grams of chloride ion are present in a solution made by dissolving 253 g of cacl2 in enough water to make 325
a battery is connected in series with a 027- resistor and an inductor as shown in the figure below the switch is closed
a square coil of wire of side 320 cm is placed in a uniform magnetic field of magnitude 225 t directed into the page as
cucu2 concentration cell has voltage of 21v at 25 c the concentration of cu2 in one of the other half cell is 14e-3m
in a model ac generator a 505 turn rectangular coil 70 cm by 20 cm rotates at 124 revmin in a uniform magnetic field of
used in welding metals the reaction of acetylene with oxygen has h0 -12562kj c2h2g 52 o2g ---------h2og 2co2gh0
the enthalpy change for the reaction of 500ml of ethylene with 500ml of h2 at 15atm pressure problem h -031kj what is
a 24-v battery is connected in series with a resistor and an inductor with r 38 and l 72 h respectivelya find the
the inner plasma membrane of a cell line is about 60 lipid and 40 protein by weight how many molecules of membrane
an 85 kg jogger is heading due east at a speed of 23 ms a 55 kg jogger is heading 22deg north of east at a speed of 25
a 0160-mole quantity of nicl2 is added to a liter of 120 m nh3 solution what is the concentration of ni2 ions at
a stream of water strikes a stationary turbine blade horizontally as the drawing illustrates the incident water stream
a golfer driving a golf ball off the tee gives the ball a velocity of 35 ms the mass of the ball is 0045 kg and the
determine the overall charge on each complex a hexachloroplatinateiv b triamminetriiodocobaltiii c
the acid-dissociation constant for an acid-base indicator hin is 00000438 at 600 nm the molar absorptivities are 2230