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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
two parallel plates have a capacitance of 10 microf when they are 10 mm apart the plates are then fully charged by a 90
why is the c-c bond length in naphthalene c10h8 between the typical single c-c bond length and the typical cc double
in the structure of phenacetin is the nh group attached to the co and aromatic would the nh group be considered an
a 20 kg box of running shoes slides on a horizontal frictionless table and collides with a 10 kg box of ballet slippers
140 ml of a 175 m aqueous solution of nh3 is titrated with a 106 m solution of hcl nh4 ka556x10-10what is the pha
a thin film of alcohol n136 lies on a flat glass plate n151 when monochromatic light whose wavelength can be changed is