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a person stands on a scale inside an elevator at rest thescale reads 800na what is the persons massb the elevator
a motorcycle and rider have a total mass equal to 300kg therider applies the brakes causing the motorcycle to
the activation energy of a certain reaction is 353 at 20 the rate constant is at what temperature would this
in looking at the solubility rules it seems that calcuim hydroxide is soluble in water but does it really precipitated
the speed of sound in human tissue is on the order of 1500 ms a 350-mhz probe is used for an ultrasonic procedure a if
a rocket of total mass 3180kg is traveling in outer space witha velocity of 115ms to alter its course by 355 degrees
a 2kg block is pushed with a horizontal force not parallel to the incline of 40n at a constant speed for 5m along an
the enzyme malate dehydrogenase catalyzes the oxidation of l-malate to oxaloacetate with the concomitant reduction of
the g string on a violin has a fundamental frequency of 196hz it is 325 cm long and has a massof 0500 g while this
which element would you expect to have the largest effective nuclear charge explain how you find the answer kr ca fe br
three identical stars of mass m from an equilateral triangle thatrotates around the triangles center as the stars move
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