What must be the plate area in square centimeters
The plates of a spherical capacitor have radii 31.0 mm and 32.0 mm. (a) Calculate the capacitance in picofarads. (b) What must be the plate area in square centimeters of a parallel-plate capacitor with the same plate separation and capacitance?
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Dimethylglyoxime, DMG, is an organic compound used to test for aqueous nickel(II) ions. A solution prepared by dissolving 65.0 g of DMG in 375 g of ethanol boils at 80.3°C. What is the molar mass of DMG?
Diethyl ether has a vapor pressure of 400.0 torr at 18°C. When a sample of benzoic acid is dissolved in ether, the vapor pressure of the solution is 342 torr. What is the mole fraction of benzoic acid in the solution?
A car is traveling over a hill. If, using a Cartesian coordinate system with origin O at the top of the hill, the hill;s profile is described by the function y=-(.003m^-1)x^2, where x and y are in meters, determine the minimum speed at which the c
After flying for 15 min in a wind blowing 42 km/h at an angle of 34° south of east, an airplane pilot is over a town that is 44 km due north of the starting point. What is the speed of the airplane relative to the air?
What critical value t* from Table C would you use for a confidence interval for the mean of the population in each of the following situations? An 80% confidence interval from a sample of size 7.
An unknown gas effuses at a rate that is only 0.468 times that of O2 at the same temperature. What is the molar mass of the unknown gas?
A lead ball is dropped into a lake from a diving board 18 ft. above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. If it reaches the bottom 5.60 s after it is dropped how deep is
To test the effectiveness of a gunpowder mixture, 1 gram was exploded under controlled STP conditions and the reaction chamber was found to expand to 310 cm3.
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