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a river with the width of 800 m flows due south with a speed of 20 ms a man steers a motorboat across the river his
1 give an example of thermodynamically stable system and a kinetically stableone whats the differencethe following
an led is constructed from a pn-junction based on a certain ga-as-p semiconducting material whose energy gap is 19 ev
calculate the ph of a solution formed by mixing 1000 ml of 020 m hclo with 2000 ml of 030 m kclo the ka for hclo is 29
how would the absorbance of a nascn have been affected if 30 m feno33 had been used in place of 20 m in the case that
a rocket passes earth and travels to a star 80 light-years away the earth hand the star are in the same frame of
an energy storage system based on a flywheel a rotating disk can store a maximum of 40 mj when the flywheel is rotating
a coal sample contains 328 sulfur by mass which when burnt to provide electrical power is converted to so2 what is the
consider the following two events a concert begins in miami florida and 5 seconds later according to a clock at rest on
nitric acid can be synthesized by the high temperature reaction of oxygen and ammonia forming nitric acid and water
a mercury barometer reads 7435 mmhg if the density of mercury is 13523 gcm3 at 800 degrees c what would be the height
a small disk of radius r200 cm has been glued to the edge of a larger disk of radius r900 cm so that the disks lie in
the physician has ordered 100 g of tetracycline to be given every 6 hours to a patient if your stock on hand is 500 mg
assume sucrose and water form an ideal solution what is the equilibrium vapor pressure of a solution of 20 grams of
consider the equation aaq 2baq 3caq 2d aq in one experiment 450 ml of 0050 m a is mixed with 250ml of 0100 m b at
a turntable rotates with a constant angular acceleration 220rads2 after a time interval 440s the wheel has rotated
how would you distinguish experimentally between an amphourous a crystalline and a crosslinked
how do you break hclo4 down showing it as an acid according to archenius
in a grocery store a convex mirror with r 40 m is used for surveillance suppose a person of height 17 m is 12 m from
025 g of sodium hydroxide naoh pellets are dissolved in water to make 80 l of solution what is the ph of this
two point charges 318 microc and -550 microc are separated by 122 m what is the electric potential midway between
a fly appears to be upside down and 3 times its actual size when viewed through a converging lens with a focal length
030 g of hydrogen chloride hcl is dissolved in water to make 45 l of solution what is the ph of the resulting
a ball whose diameter is 6 cm is placed 70 cm in front of a convex spherical mirror if the focal length of the mirror
a solution contains 10 x 10-5 m na3po4 what is the minimum concentration of agno3 that would cause precipitation of