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lithium is the least dense metal known density 053 gcm3 what is the volume occupied by 590 multiplied by 103 g of
you want to keep your house dry enough so that water does not condense on your walls at night the the temp gets down to
a concave makeup mirror is designed so that a person 22 cm in front of it sees an upright image magnified by a factor
a convex spherical mirror whose focal length has a magnitude of 198 cm is to form an image 122 cm behind the mirrora
express the concentration of a 00170 m aqueous solution of f- in mass percentage and in parts per million assume the
a meterstick of negligible mass has a 015kg mass at its 38cm mark and a 035kg mass at the 78cm markpart a where should
what is the distribution coefficient for compound a that is soluble in diethyl ether to the extent of 20g100ml at room
you are in charge of calibrating the radar guns for a local police department one such device emits microwaves at a
a baseball is thrown with an initial velocity of 20 ms along the horizontal axis and 15 ms along the vertical axis the
if we took exactly 100 ml of a 1000 m solution of cuno32 and placed it in 99000 ml of water and mixed it then took 200
assuming equal concentrations rank theses solutions in order from lowest ph to highestall aqueous caoh2 hbro nh3 rboh
two metal cylinders appear to be identical you measure the radii and find them to be the same you dont have a scale or
a 140 kg iron horseshoe is taken from a forge at 950degc and dropped into 400 kg of water at 140degc assuming that no
two children with masses 31 kg on the left and 45 kg on the right sit at opposite ends of a 32 m long seesaw with mass
write two equations for the dehydration of 2-methyl-2-butanol one should show yhe structures of both alkenes and the
a wheel having a radius 050 m and inertia of 117 kg middot m2 is rotating freely at 54 revmin the wheel can be stopped
a 110m long ramp is inclined at 13 degrees to the horizontal a solid ball is released from rest at the top of the
one end of a string 30 m long is moved up and down with simple harmonic motion at a frequency of 60 hz the waves reach
a wheel 550 cm in diameter accelerates uniformly from 215 rpm to 370 rpm if in this process a point on the edge of this
find the absolute and percent relative uncertainty and express the answer with a reasonable number of significant
squids and octopuses propel themselves by expelling water they do this by taking the water into a cavity and then
a person doing a chin-up weighs 680 n exclusive of the arms during the first 250 cm of the lift each arm exerts an
an old fashion record is spinning freely at 78 rpm revolutions per minute when another record is dropped lightly