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when a person inhales air moves down the bronchus windpipeat 16 cms the average flow speed ofthe air doubles through a
what is the principal quantum number of the valence electrons in an atom lead explain how you got your
in 1919 rutherford was able to show a breakdown in hisscattering formula for 77 meva particle scattered atlarge angles
5h2c2o4 2 kmno4 h2so4 ---gt 10 co2 k2so4 2mnso4 8h20if 100 g of h2c2o4 is reacted with 50g kmno4 how many g of co2
one gram of water changes from liquid to solid at a constantpressure 100 atm and a constant temperature of 0degreesin
an electric motor in a hair dryer is running at normal speedand thus is drawing a relatively small current whathappens
an engine that operates at the maximum efficiency possibletakes in 10 mj of heat at 327o c and exhausts waste at127o c
two equal mass stars maintain a constant distance apart of 80x 1010 m and rotate about a poing midway betweenthem at a
the magnitude of the induced emf in a coil is 60 v at the instant when the current in the coil is 20 a and increasing
in a candy company separate streams of sugar corn syrup cocoa vanilla extract and milk enter a mixer-boiler and out as
a 280 kg box slides down a rough incline plane from a height h of 103 m the box had a speed of 321 ms at the top and a
the potential difference between the accelerating plates of a tv set is about 25 kv if the distance between the plates
tarzan who weighs 688 n swings from a cliff at the end of aconvenint vine that is 18m long from the top of the cliff
gas in a tank contains a poison at a concentration ct but the gas is leaking into the surrounding room at a rate of t
define a spectrum and discuss how spectra are used in astronomyexplain how emission and absorption lines are produced
electrons accelerated by a potential difference of 123 v passthrough a gas of hydrogen atoms at room temperature what
explain the relationship between the signof delta h rxn and wheathera reaction is exothermic or
a pigeon flying horizontally at a speed of 160ms drops a stolen rolex watch the timepiece falls to the ground in 290s a
a 53-g iron bar at 100 degrees celsius is placed in a 300 g of water at 30 degrees celsius if the specific heat
an airplane employee tosses a 15-kg suitcase with a horizontal velocity of 3 ms onto a 35-kg baggage carrier knowing
a particle is acted on by 2 torques about the origin has a magnitude of 20nm and is directed in the positive direction
the working substance of a certain carnot engine is 10 mol of an ideal monatomic gas during the isothermal expansion
a beam of red laser light 633 nm hits a black wall andis fully absorbed if this exerts a total force of f 55 nnon
to make an industrial solvent benzenec6h6 is provided at a molar flow rate of 1140 kgmolhr toluene c7h8 is also added