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during a portion of the carnot cycle a dilute gas of diatomic nitrogen is compressed slowly at constant temperature t
a jet plane lands with a speed of 88 ms and can accelerate at a maximum rate of -440 ms2 as it comes to resta from the
a flywheel of mass 187 kg has an effective radius of 063 m assume the mass is concentrated along a circumference
a gaseous compound containing carbon and hydrogen was analyzed and found to consist of 8365 carbon by mass at 139
a puck of mass m 190 kg slides in a circle of radius r 230 cm on a frictionless table while attached to a hanging
how do i express quantities using significant figures to imply errors an example question is 1989 -
heptane c7h16 and octane form an ideal solution at 40 degrees c thevapor pressure of pure heptane is 0522 atm and the
as a scuba diver descends under water the pressure increases at a total air pressure of 270 atm and a temperature of
you wish to prepare a buffer solution containing nan3 and hn3 hydrazoic acid you have to prepare the solutions firsta
a firecracker is tossed straight up into the air it explodes into three pieces of equal mass just as it reaches the
if a particle of mass 49 kg is moving east at 10 ms and a particle of mass 19 kg is moving west at 10 ms what is the
a block of wood of mass 101 kg is initially at rest a bullet of mass 0047 kg traveling at 1050 ms strikes the block and
25 ml of 010 m solution of mgcl2 is mixed with 25 ml of 025 m naoh solution1 how many grams of mgoh2 precipitate form2
a 845-l container holds a mixture of two gases at 33 degc the partial pressures of gas a and gas b respectively are
an object of mass 40 kg is allowed to fall from rest under the force of gravity for 34 s what is the change in its
1 airbags contain a mixture of sodium azide potassium nitrate and silicon dioxide a sensor detects a head on collision
a car with mass of 10000 kg accelerates from 0 ms to 400 ms in 110 s ignore air resistance the engine has a 23
the photosynthesis reaction is 6co2g6h2og-gt c6h12o6s6o2g if the reaction requires 2823 kjmole of c6h12o6 formed how
assuming that gasoline is 100 isooctane and that the density of isooctane is 0792 gml what mass of co2in kilograms is
in the figure below m1 95 kg and m2 45 kg the coefficient of static friction between m1 and the horizontal surface is
a sample of gas with a mass of 687g occupies 325l at stp what is the molecular
a microphone is located on the line connecting two speakers that are 0766 m apart and oscillating 180deg out of phase
consider the oxidation of ethanol ch3ch2oh to acetaldehyde ch3cho by nad a write half reactions for the process b
how would you find the ksp of a salt using only molecular weight and