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a hydrogen molecule consists of two hydrogen atoms whose totalmass is 53 10 -26 kg and whose moment of inertiaabout an
at constant volume the heat of combustion of a particular compound is -36430 kjmol when 1231 g of this compound molar
a block of unknown mass is attached to a spring with a springconstant of 600 nm and undergoessimple harmonic motion
an 800-gram sample of a gas was heated from 25 degc to 225 degc during this process 346 j of work was done by the
if you have 4300 ml of water at 2500 degc and add 1200 ml of water at 9500 degc what is the final temperature of the
if the heat of combustion for a specific compound is -12100 kjmol and its molar mass is 4697 gmol how many grams of
the brightest star in the night skyis sirius which is at a distance of 830times1016 mwhen we look at this star how far
a researcher studying the nutritional value of a new candy places a 490-gram sample of the candy inside a bomb
a 2543 g sample of a substance is initially at 259 degc after absorbing 1137 j of heat the temperature of the substance
tasha has mass 20kg and wants to use a 40m board of mass 10kgas a seesaw her friends are busy so tasha seesaws by
automobile airbags contain solid sodium azide nan3 that reacts to produce nitrogen gas when heated thus inflating the
a wheel radius020m is mounted on a frictionless horizontalaxisa light cord wrapped around the wheel supports a050kg
a person is riding a bicycle the wheels of a bicycle have anangular velocity of 220 rads then the brakes are applied
the dissociation constant kd of a 11 ligand l protein p complex is 20x10-6 calculate the fractional concentration y at
in the sn1 reaction of 2-methyl-2-butanol with hcl to prepare 2-chloro-2-methlybutane t-amyl chloride what are the side
a 300 kg object connected to spring with a force constant of 500 nm oscillates on frictionless horizontal surface if
baking powder is made up of sodium hydrogen carbonate and calcium hydrogen phosphate when baking powder is wet these
an aluminum rod is 185 cm long at20degc and has a mass of 350 g if 10500j of energy is added to the rod by heat what is
use the equation ph pka log conjugate baseacid to derive an expression showing the fraction of acid f in terms of its
an earth satellite moves in a circular orbit610 km above the earths surface the period of the motion is 967mina what is
assume you have a material in which an equal number of electrons and holes are available to transport charge if the
a railroad car with a mass of 50 105-kgcollides with a stationary railroad car of equal massafter the collision the
the gasoline tank of an automobile contains 83 kg of gasoline the gasoline combines with 3320 kg of oxygen what is the
a 590 kg cheerleader uses an oil-filled hydraulic lift to holdfour 130 kg football players at a height of 120 m if her
a layer of ice has formed on a shallow pond the air just above theice is at -521 degc the water-ice interface is at 0