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light wavelength is 510 nm is directed at a double slit where the distance between the slits is 450 micrometers a
a firehose 15 m long is uncoiled by pulling the nozzle end horizontally along a frictionless surface at the steady
rxn of triphenylphosphine with benzyl bromide produces the corresponding phosphonium salt suggest a suitable mechanism
why is it important that any aldehyde used in the writing rxn be free of carboxylic acid
an organ pipe open at both ends is vibrating with n5 with a frequency of 646 hz the length of the pipe is 05 m
two identical 012 kg blocks labeled 1 and 2 are initially at rest on a nearly frictionless surface connected by an
below is my question about concentrations in gases and liquids i understand henrys law and how it relates to partial
the fresh water behind a reservoir dam is 150 m deep a horizontal pipe 250 cm in diameter passes through the dam 75 m
suppose that a liquid is 11 times denser than water if you were to sip this liquid at sea level using a straw what
how does le chatliers principle explain the effect of adding dry ice on a reaction of water and co2 with sodium
part 1 a spool of wire of mass 69 kg and radius 028 m is unwound under a constant wire tension 15 n assume the spool is
why does g always decrease as you move towards equillibrium no matter what concentrations of product and reactant you
two identical 013 kg blocks labeled 1 and 2 are initially at rest on a nearly frictionless surface connected by an
a runner whose mass is 55 kg accelerates from a stop to a speed of 8 ms in 3 seconds a good sprinter can run 100 meters
consider the titration of 100ml of 100m h2nnh2 kb3010-6 by 200 m hno3 calculate the ph of the resulting solution after
a string is wrapped around a disk of mass m 19 kg and radius r 012 m starting from rest you pull the string with a
a mixure of gases collected over water at 14 degrees celciushas a total pressure of 0981 atm and occupies 55mla how
an iron casting containing a number of cavities weighs 200528 n in air and 161210 n in water what is the total volume
a room with dimensions 7m x 8m x 25m is to be filled with pure oxygen at 220 degrees c and 100 atm the molar mass of
1 a 100 l buffer solution is 0150 m in hc7h5o2 and 0250 m in lic7h5o2 calculate the ph of the solution after the
a 300 lb bungee jumper wants to jump from the top of a 230 ft high bridge and be able to just touch the water below
why is the e isomer of 12-dibenzoylethylene more stable than the z isomer is this why irradiation goes from e to z and
a uniformly charged wire or radius r1002m runs down the axis of a cylinder of inner radius r2006m the potential
how many grams of methane must be combusted to heat 115 of water from 260 to 890 assuming as a product and 100
a 54 ball hangs from a steel wire 180 in diameter and 600 long what would be the speed of the wave in the steal