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a parallel- plateair-gap capacitor has a capacitance of 28 pf the platesare separated by 12mm 1 pf 1 x 10-12f 1 mm 1
a ball is thrown by an italian physicist from the top of the leaning tower of pisa at a speed of 8ms and falls to the
what volume ml of the solvent h2o should be added to 136 ml of the solute ch3oh to make a solution that is 112 parts
a sugar-water mixture contains 458g of sugar and 1085g of water what is the percent by mass of sugar and the percent
a ball is tied to an elastic string of length 80m and swung in a horizontal circle with a velocity if 08ms when a
you are given a wooden rod 70 cm long and asked to drill a small diameter hole in it so that when pivoted about the the
a vertical container with base area measuring 140 cm by 170 cm isbeing filled with identical pieces of candy each witha
a certain device in a 120 v circuit has a current rating of 20 a find the resistance of the device answer in units of
a swimmer swims across the river and reaches the opposite shore directly across from where he started he swims at 50 ms
the voltage marked on a light bulb is usu- ally either 110 or 120 v the power of a light bulb is 60 w it is connected
william burns 52 g of peanuts beneath 1000 g of water which increases in temperature from 27c to 43c assuming 30
the concentration of cadmium in seawater can be determind spectrophotometrically to six 500ml seawater samples various
in the 1950s an experimental train that had a mass of 16000 kg was powered across a level track by a jet engine that
a student collects 242ml oxygen in a gas collecting tube by water displacement the water level inside the tube is 270mm
write the net ionic equation for the reaction that takes place when lead ii ion precipitates with chloride ionwrite the
a certain reaction with an activation energy of 165 kjmol was run at 485 k and again at 505 k what is the ratio of f at
in an l-r-c series circuit the rms voltage across the resistor is 283 v across the capacitor it is 882 v and across the
when 100 mol h2s was put into a 100 l vessel and heated to 1132 degrees celcius it gave an equilibrium mixture
a barefoot field-goal kicker imparts a speed of 49 ms to a football initially at rest if the football has a mass of 076
in a polymerization reaction of styrene with the concentration of 2 m in 2 liter cyclohexane solvent the polymerization
an aluminum wire having a cross-sectional area of 300 10-6 m2 carries a current of 42 a find the drift speed of the
tris base pka81 was dissolved in 5l of water to give the final concentration of 1 m how much does the ph change after
in a series l-r-c circuit the components have the following valuesl 215mh c 165uf and r 320 ohm the generator has an
name and give formulas of two acids that are strong electrolytes and one acid that is weak name and give formulas of
two 500 g block of wood are 20m apart on a frictionless table a 10g bullet is fired at 400 ms towards the blocks the