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a potters wheel having a radius 053 m and a moment of inertia of 149 kg middot m2 is rotating freely at 46 revmin the
a bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a tris buffer
at some instant the velocity components of an electron moving between two charged parallel plates are vx 190 105 ms
suppose solute a has a distribution coefficient of 10 between water and diethyl ether demonstrate that if 100 ml of a
a 500-ml volume of 015 m is titrated with 025 m koh calculate the ph after the addition of 200 ml of
a find the of nickel in the coin solution molority of nickel is 8469 density of coin solution as 100gmlb find the of
an unknown element of mass 0250 kg initially at 950degc is dropped into 0400 kg of water c 4186 jkgbulldegc at 200degc
a train consists of 4300kg locomotive pulling two loaded boxcars the first boxcar has a mass of 12700 kg and the second
ammonia and hydrogen chloride gases react to form solid ammonium chloride a 100 l reaction flask contains ammonia at
a 45db sound wave strikes an eardrum whose area is42multiplied by10-5m2a how much energy is absorbed by the eardrum per
calculate the work done when 250 g of tin dissolves in excess acid at 100 atm and 29degc assume ideal gas
a a student must make a five-fold dilution of a 215 m hcl solution if the student wishes to make 750 ml of the diluted
a 250 ml solution of 0600 m edta was added to a 570 ml sample containing an unknown concentration of v3 all v3 present
a refrigerator uses 400 j of work to extract 900 j from a heat reservoir at 000degc what is the coefficient of
you titrate 250 ml of 0110 m nh3 kb 176 x 10-5 with 0100 m hcla what is the ph of the nh3 solution before the
a 300 cm times 500 cm rectangular piece of copper is at a temperature of 100degc the coefficient of linear expansion of
a 100 liter water tank is filled to the brim with water when the temperature is 500degc water has a coefficient of
a pure gold ring and pure silver ring have a total mass of 164g the two rings are heated to 635 c and dropped into a
a model rocket rises with constant acceleration to a height of 38 m at which point its speed is 240 msa how much time
a bat flies toward a wall at a speed of50ms as it flies the bat emits an ultrasonic sound wave with frequency295khz
an ecobotanist separates the components of a tropical bark extract by chromatography she discovers a large proportion
now a second resistor r2 of 32x105 is connected in parallel to the existing resistor in the circuit and a second
find the ph and volume ml of 00372 m naoh needed to reach the equivalence points in titrations of 200 ml of 00892 m
suppose your waffle iron is rated at 085 kw when connected to a 210 102 v sourcewhat current does the waffle iron
an electric heater carries a current of 125 a when operating at a voltage of 360 102 v what is the resistance of the