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an isolated conductor of arbitrary shape has a net charge of 11 x 10- 6 c inside the conductor is a cavity within which
window glass is typically made by mixing soda ash na2co3 limestone caco3 and silica sand sio2 and then heating to 1500
a 16 ounce specialty coffee drink contains 216 mg caffeine if all the caffeine is extracted and dissolved in an equal
determine the number of revolutions through which a typical automobile tire turns in 1 yr suppose the automobile
in a classroom demonstration a speaker was mounted on the end of a 500 cm long arm and rotated in a horizontal circle
calculate the molar mass of a a gas that has a density of 198gl at stp and b an unknown liquid for which 333 liters at
reaction time is the shortest time interval elapsed after the driver of a car decides to apply the break for example
propose a mechanism for the synthesis of 3-nitrophthalhydrazide from 3-nitrophthalic acid include arrow pushing
a 1000- kg car collides with a 1200- kg car that was initially at rest at the origin of an x-y coordinate system after
a cube of ice is taken from the freezer at -79degc and placed in a97g aluminum calorimeter filled with322g of water at
the solubility of co2 gas in water is 015g100ml at a co2 pressure of 760mmhgwhat is the solubility of co2 in a soft
a cubic box of volume36multiplied by10-2m3is filled with air at atmospheric pressure at 20degc the box is closed and
sulfur dioxide is released in the combustion of coal scrubbers use aqueous slurries of calcium hydroxide to remove the
a tire is filled with air at 15degc to a gauge pressure of210kpa if the tire reaches a temperature of38degc what
a 140g sample of an unknown gas occupies 108l at a temperature of 30 degrees celsius and a pressure of 750mmhg what is
an ordinary glass is filled to the brim with3510ml of water at 100degc if the temperature decreased to29degc how much
a bat flies toward a wall at a speed of55ms as it flies the bat emits an ultrasonic sound wave with frequency290khz
when fully inflated a hot-air balloon has a volume of 16 x 105 at an average temperature of 397k and 0985 atmassuming
if you were to build a pipe organ with open-tube pipes spanning the range of human hearing 20 hz to 20 khz what would
the heat of fusion of sodium metal is 630 calmol how much heat in kilocalories is required to melt 179 grams of
a46db sound wave strikes an eardrum whose area is40multiplied by10-5m2a how much energy is absorbed by the eardrum per
the heat of fusion of acetic acid the principal organic component of vinegar is 459 calghow much heat in kilocalories
a guitar string is77cm long and has a mass of 36 g the distance from the bridge to the support post isl 60 cm and the
the heat of vaporization of water is 972 kcalmolhow much heat in kilocalories is required to vaporize 270 mol of h2o
an earthquake emits both p-waves and s-waves that travel at different speeds through the earth a pwave travels at 8 000