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calculate delta u of a gas for a proces inehich the gas obsorbs 3 j of heat and does 10 j of work by expandinga 13 jb
a roller coaster starts at a point 30 m above the bottom of a dipwith a speed of 25 ms neglect friction what will be
from benzenesulfonic acid how do we desulfonize it in other words what is the reverse sulfonation mechanism with
four tires of an automobile are inflated to a gauge pressure of 201kpa each tire has an area of 00230 m2 in contact
calculate the ph of a solution prepared by dissolving 075 mol of nh3 and 025 mol of nh4cl in water sufficient to yield
a compound has been analyzed and has been found to have the following composition copper 6675 phosphorus 1084 oxygen
an object is attached to the lower end of a 100coil spring that is hangign fromm the ceiling the springstretches 16 m
the ion concentration of blood is typically around 135 - 145 mm to make 100 l of a solution containing 140 mm nacl
an interesting but over simplified model of an atom pictures anelectron in orbit around a proton suppose this electron
what is the molarity of a solution prepared by dissolving 572 grams of naoh in 438 ml of solution what is the balanced
a 10 kg book initially at rest falls from a height of 15 mto the floor use conversation of mechanical energy to show
the shaft of a pump starts from rest and has an angularacceleration of 550 rads2 for180 sa at the end of this interval
draw an apparatus list necessary equations and make an illustrationflow graph that shows how to determine the
a flight attendant pulls her 74 nflight bag a distance of 318 m along alevel airport floor at a constant velocity the
a spherical mirror is polished on both sides when the convexside is used as a mirror the magnification is 14 what is
what problem will ensue if the level of the developing liquid is higher than the applied spot in a tlc
a group of college students eager to get to floride on a spring break drove the 637 mi trip with only minimum stops
23 g of oxygen are reacted with sufficient nitrogen to make 33 g of nitrogen dioxide according the following reaction
the pull cord of a lawnmower engine is wound around a drum ofradius 600 cm while the cord is pulled with a force of 75
a 10 kg book initially at rest falls from a height of 15 mto the floora does the gravitational potential energy at the
consider two bobs of equal mass but different size both tied tothe same length of string the first is a sphere the
a student finds a shiny gold-covered rock and decides to determine if it is gold she first determines that the mass of
a two capacitors of 26muf and 444 muf are connected in parallel and charged with a150 v power supply find the total
a mechanic turns a wrench using a force of 25 n at a distance of 16cm from the rotation axis the force is perpendicular
in the molecular structure of maleic acid and fumaric acid there are four h atoms however the compounds are diprotic