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if a boat floats in two types of liquid one more desnse than theother where is the buoyant force greater on the
the ph of lemonade is approximately 30 how many times greater is the h in coffee than in tap water having a ph of
a 500kg pig is standing at the top of a muddy hill on a rainy day the hill is 1000m long with a vertical drop of 300 m
the energy necessary to generate a dislocation is proportional to the square of the length of the burgers vectoribi2
kathy is changing the tire of her car on a steep hill 200 m highshe trips and drops the 100-kg spare tire which rolls
write oxidation number of the following a ammonium oxalate nh42c2o4 and b ethanol c2h5oh please include
blackie a cat whose mass is 545 kg is napping on top of therefrigerator when he rolls over and falls blackie has a ke
the suns mass is 2 x 1030 kg and theaverage radius of jupiters orbit is 78 x 1011 m find the orbital velocity of
a mixture of cuso4 5h2o mgso4 7h2o is heated until all the water is lost if 5020 g of the mixture gives 2988 of the
an earth satellite revolves in a circular orbit at a height of525 km above the earths surfacea what is the speed of the
draw the structures and write the iupac names of the two alkenes that are formed when 2-hexanol undergoes a
which is a redox reaction identify reducing and oxidizing agents a ch4 burns in oxygen to produce carbon dioxide and
two large parallel conducting plates are 17 cm apart and have charges of equal magnitudeand opposite sign on their
explain in terms of colligative properties ion pairing and vant hoff factors why the freezing points of the following
the energy levels the electron can occupy in the he ion can be calculated using the energy level equation calculate the
perhaps to confuse a predator some tropical beetles arecolored by optical interference that is due to scales
abody weight w is attached by a string of length l to a hook on a vertical wallnbsp a horizontal force f acting on the
three charges are fixed to an x y coordinate system a chargeof 4muc is on the y axis at y2meters a charge of -8mucis at
an alloy is 80 by volume iron the rest is aluminum aluminum has a density of 270 gcmsup3 and irons is 787 gcmsup3 a
a square of side a has a chargenbsp q at each cornerwhat is the electric potential energy of this system of
a 265- flask contains pure helium at a pressure of 760 a second flask with a volume of 495 contains pure argon at a
write balanced ionic equation net ionic equation oxidation half reaction and reduction half reaction when liquid sodium
in proton-beam therapy a high-energy beam of protonsis fired at a tumor the protons come to rest in the tumordepositing
a 60kg person walks on a 100kg log at therate of 080ms with respect to he log with what speed does the log move with
a 260 g block is dropped onto arelaxed vertical spring that has a spring constant of k 25 ncm the block becomes