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a spherical raindrop of mass 000942 g and radius 131 mm falls from a cloud that is at a height of 1115 m above the
at 500k the equilibrium constant kp for the reaction is 424e-10 r08206 what is the value of kc for the reaction cocl2co
the rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides therefore
assume an indicator works best when the equivalence point of a titration comes in the middle of the indicator range
ethyl chloride a substance used as a topical anesthetic is prepared by reaction of ethylene with hydrogen chloride
a step-down transformer turns ratio 18 is used with an electric train to reduce the voltage from the wall receptacle
the battery charger for an mp3 player contains a step-down transformer with a turns ratio of 125 so that the voltage of
draw every stereoisomer for 12-difluoro-12-dimethylcyclopentane use wedge and dash bonds for the substituent
the maximum strength of the earths magnetic field is about 69 x 10-5 t near the south magnetic pole suppose we want to
aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating
a generator has a square coil consisting of 265 turns the coil rotates at 106 rads in a 0174-t magnetic field the peak
maddox takes off on his jet ski so they have a combined mass of 35048kg the skis have a thrust of 97326n and a
an iron bar of mass 082 kg slides down a frictionless incline 029 m high at the bottom of the incline it collides and
regulation tennis balls have a mass of 575 g when dropped from a height of 307 m they must rebound to a height of 213 m
free radicals are also important in many environmentally significant reactions for example photochemical smog which
a 1349 g ball of putty traveling east at 675 ms collided and sticks to another ball of putty of mass 2381 g traveling
a 5000-ml sample of 0100 m koh is titrated with 0152 m hno3 calculate the ph of the solution after 5200 ml of hno3 is
a radioactive nucleus decays spontaneously by the emission of an electron and neutrino the electron carries away 0 kg
a baseball pitcher throws a 145 g baseball parallel to the ground with a speed of 3903 ms in the x direction the batter
a 100 ml sample of 010 m hcl is mixed with 50 ml of 015 m nh3 what is the resulting ph kb for nh3 18 times
starting from rest a 96-kg firefighter slides down a fire pole the average frictional force everted on him by the pole
in 1769 seconds you compress a spring of spring constant 15333 nm from its equilibrium length of 65 cm to a length of
lakes that have been acidified by acid rain can be neutralized by liming the addition of limestone caco3 how much
a car plus its driver has a mass of 1400 kg when the driver takes his foot off the accelerator the car slows from 30 m
the first-order reaction for hydorgen peroxide decomposing to h20 and o2 aq the rate constant at 25 c is 740 x