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a particle is located at r41i31j56km a force f95j-35kn acts on itwhat is the torque calculated about the
to 1000 of a solution that contains 0120 and 0420 is added 300 of 0220 the dichromate and chromiumii ions react to give
a roller coaster descends 35 meters in its initial drop and then rises 23 meters before going over the first hill if a
if a combination of helium and argon expands from 660l to 860l under a constant pressure of 130 atm calculate the work
assume that a certain location on the earth reflects 310 of the incident sunlight from its clouds and surfacea if the
6m nh3 a basic solution cannot be found on the reagent shelf but 6 m naoh also a base is available what would be
a uniform stick 15 m long with a total mass of 300g is pivoted at its center a 35-g bullet is shot through the stick
a chemist must prepare 09 l of sodium hydroxide solution with a ph of 1340 at 25 c he will do this in three steps fill
a galaxy located at a distance d of 1 million light years away has an angular size a 5 degree what is the approximate
a solution is prepared by dissolving 202 of methanol in 1000 of water at 25 the final volume of the solution is 118
nitric acid hno3 has three resonance structures one of them however contributes much less to the resonance hybrid than
for the following reaction at 2982 k 2 cog o2g ---gt 2 co2g calculate deltasuniverse given deltassystem -1731 jk and
write both an equations using lewis structures and a balanced chemical equations for the following reactions silicon
a bicycle has wheels with a diameter of 0650 m it accelerates uniformly and the rate of rotation of its wheels
a pipet delivers 105 103 109 and 107 ml afind the mean volume and deviation from the mean for each and calculate the
a speeder is pulling directly away and increasing his distance from a police car that is moving at 25 ms with respect
two radio waves are used in the operation of a cellular telephone to receive a call the phone detects the wave emitted
what is the boiling point of cyclohexane at 680mmhg bp correction 760mmhg-atmospheric pressure x 0037 0c bp of
ahow many valance electrons does calcium fluorine have b what is its empirical formula c what is its lewis
in 1980 over san francisco bay a large yo-yo was released from a crane suppose the yo-yo was 100 kg and it consisted of
calculate an approximate deltah in kilojoules for the industrial synthesis of ethyl alcohol from ethylene c2h4g h2og
a test rocket is fired straight up from rest with a net acceleration of 20 rm ms2 after 4 seconds the motor turns off
the following reaction is used in the haber bosch process for the synthesis of ammonia n2g3h2g-gt2nh3 if the initial
a 650104 kg space probe is traveling at a speed of 10000 ms through deep space retrorockets are fired along the line of
experiments show that the following redox reactions are second-order overall 1 no2g cog --gt nog co2g 2 nog o3g --gt