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a river contains 105 mgl of dissolved silica the measured ph 65 and the water temperature is 25 degrees celcius
how many champagne flutes holding 180 ml of dom peacuterignon champagne can a 80 kg person drink in arizona before
a cat crouches on the floor at a distance of 16 m from a desk chair of height 45 m the cat jumps onto the chair landing
what is the heat absorbtion for 100 g liquid water that is frozen to ice at 0 degrees c and 1
a super ball made of rubblerlike plastic is thrown against a hard smooth wall the ball has a mass of 40g and strikes
the ratio of the number of atoms of the isotopes ga-69 and ga-71 in eight samples from different sources was measured
a grindstone of radius 40 m is initially spinning with an angular speed of 80 rads the angular speed is then increased
in arizona if you are caught driving with an alcohol ethanol blood level of 015 wv weight per volume - consult your lab
a semicircular loop lies in the z 0 plane and carries a current i 50 a when a magnetic flux density b 2ay az t is
what are the major species present in 0250 m solutions of each of the following acids calculate the ph of each of these
a ship travels 80 km due north on the first day of a voyage 50 km northeast on the second day and 90 km due east on the
why is the number of microseconds in a week not considered an exact number arent there 106 microseconds in a second
tris is widely used in a biochemical laboratory its acid dissociation constant is 832x10-9 you have available at your
calculate the volume of an object that has a density of 0817 gml and a mass of 127 grams answer to 3 significant
calculate the work done in joules by the reaction 2 na 2 h2ogtgtgt 2naoh h2 when 023g of na reacts with excess water
your car has stalled and you need to push it you notice as the car gets going that you need less and less force to keep
a 100000 gal tank is 75 full of liquid containing 60000 lb of solid in suspension water flows into the tank at a rate
together two students exert a force of 640 n in pushing a car a distance of 30 ma how much work do the students do on
the following four numbers are estimates of the mass of an object 520 g 566 g 610 g and 535 g what is the standard
a bas traveling at 250 ms applies the brakes and decelerates uniformly at a rate of 12 ms a how far does it travel in
sally expends 10320 j of energy to drag a wooden crate 247 m across a floor with a constant speed the rope makes an
a cyclohexane has a freezing point of 650 degrees c and a kf of 200 degree cm what is the freezing point of a solution
brutus a champion weightlifter raises 240 kg of weights a distance of 270 ma how much work is done by brutus lifting
a piston performs 450 latm of irreversible work on the surrounding while the cylinder in which it is placed expands
a movers dolly is used to transport a refrigerator up a ramp into a house the refrigerator has a mass of 108 kg the