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what is the total energy of an object that has mass of 654 kg with a velocity of 627 ms which is also experiencing an
a solution containing copper i nickel and zinc cyanide complexes was eloctrolyzed and a deposit of 0175 grams was
in the olympiad of 700 bce athletes competing in the standing long jump used handheld weights called halters to
formic acid has a ka ten times larger than that of acetic acid in solutions with the same molarity the formic acid
a chemist needs to mix a 75 saltwater solution with a 50 saltwater solution to obtain 10 gallons of a 60 saltwater
what is the ph of an acetic acid-potassium acetate buffer if the salt concentration is 40 higher than that of the acida
prove that if f is defined on an open interval i and has a positive derivative at a point a isin i then there is an
two same-size metal posts one aluminum and one copper are subjected to equal shear stressesa which post will show the
how many grams of sodium acetate do you need to dissolve in 100l of 100m acetic acid to produce a buffer with a ph of
a dolphin jumps with an initial velocity of 125 ms at an angle of 360deg above the horizontal the dolphin passes
one of the strongest weak acids is chloric acid its ka is 10 what is the ph of a 075m solution of hclo3a 006b 015c 030d
a the ksp for aloh3 is 1910-33 what is the ph of a sauturated solution of aloh3 ignore any hydrolysisb an aqueous
a person walked a 400 m with a constant speed of 1 ms then he increased his speed and walked another 400 m with 2 ms
the ksp of the imaginary compound ab is 16 10-53 how many liters of water should it take to dissolve one molecule of
a spherical conducting shell of inner radius a and outer radius b carries a total charge of 5q distributed on the
in a football game a receiver is standing still having just caught a pass before he can move a tackler running at a
a vibrating guitar string emits a tone simultaneously with one from a 500-hz tuning fork if a beat frequency of 5 hz
sound travels at a speed of about 344 ms in air you see a distant flash of lighting and hear the thunder arrive 76
an object-spring system oscillates with an amplitude of 42 cm if the spring constant is 270 nm and object has a mass of
a child is sitting on the outer edge of a merry-go-round that is 18 m in diameter if the merry-go-round makes 84 revmin
an 800-khz radio signal is detected at a point 45 km distant from a transmitter tower the electric field amplitude of
a bicyclist travels in a circle of radius 260 m at a constant speed of 900 ms the bicycle-rider mass is 840 kga
a certain string can withstand a maximum tension of 31 n without breaking a child ties a 033 kg stone to one end and
a circular curve of highway is designed for traffic moving at 55 kmha if the radius of the curve is 120 m what is the
a child places a picnic basket on the outer rim of a merry-go-round that has a radius of 50 m and revolves once every