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superman attempts to drink water through a very longstraw with his great strenth he achieves maximum possible
ethylene diamine bp 116 c and water form a maximum boiling azeotrope bp 120 c the azeotropic mixture is 80 in ethylene
the four tires of an automobile are inflated to a gaugepressure of 23 105 paeach tire has an area of 0024m2 in contact
a high-speed lifting mechanism supports a 875 kg object with a steel cable 230 m long and 400 cm2 incross-sectional
a first order reaction has an activation energy of 724 kjmol and a frequency factor arrhenius constant of 178 x 1013
a boat is traveling upstream at 14 kmh with respect to thewater of a river the water itself is flowing at 9 kmh
calculate the molarity and the molality of reagent grade nitric acid the specific gravity of this solution is 140 and
a rotating fan completes 1200 revolutions every minuteconsider a point at the tip of the blade at a radius of015ma
columns in the periodic table are called groups and the rows are called periods notice that the groups are labeled 1 to
a 48 g piece of ice at 00 degree c is placed in an insulated calorimeter of negligible heat capacity containing 100 g
a 200 kg floodlight in a park is supported at the end of ahorizontal beam of negligible mass that is hinged to a pole
derive an expression for work done in reversible isothermal expansion of a gas obeying van der waals equation calculate
a storage tank has a diameter of 80 ft a height of 25 feet andcontains oil to a height of 15 ft the suction pumps
a sample consisting of 100 mol of a van der waals gas is compressed from 200 dm3 to 100 dm3 at 300 k in the process 202
a uniform electric field of magnitude75times105 nc points in the positive xdirectiona find the change in electric
exactly 75 ml of a 03132m solution of na2so3 were treated with 150 ml of 04025 m hclo4 and boiled to remove so2 the
a car is designed to get its energy from a rotating flywheelwith a radius of 150 m and a mass of475 kg before a trip
quantitative analysis of an unknown organic compound showed it to contain only c h and cl combustion analysis of a
the surface of the drum of a laser printer is negatively chargedexcept in certain print black regions such as
a vertical cylinder has a 10kg frictionless piston 5cm in radius inside the cylinder are 10 mols of helium at 2 bar and
a skier of mass 70 kg is pulled up a slope by a motor drivencablea how much work is required to pull him 60m up a 30
two rockets are each 1000m long in their rest frame rocket 1traveling at 9c relative to earth in over taking rocket
a solution has a hydroxide ion concentration of 954 x 10 to the neg 5 m what is the hydronium ion concentration step by
a 450 kg girl is standing on a 159 kg plank the plank originally at rest isfree to slide on a frozen lake which is a
during a storm a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle