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neptune circles the sun at a distance of 4501012 once every 164 years saturn circles the sun at a distance of 1431012m
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a planet has two small satellites in circular orbits around the planet the first satellite has a period 12 hours and an
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a sample consisting of 15 mol of perfect gas molecules with cpm 208jkmol is initally at 230kpa and 315 k it undergoes
write the mathematical equation to be used in determining the enthalpy change and explain each term in the
a 45 kg trunk is pushed 78 m at constant speed up a 30deg incline by a constant horizontal force the coefficient of
a compound has the empirical formula chcl note the last element is chlorine a 2560ml flask at 373k and 750mmhg contains
a sample of nitrogen of mass 312g at 230 degree celsuis is allowed to expand reversibly and adiabatically from 400cm3
a skier starts from rest at the top of a hill that is inclined at 93deg with respect to the horizontal the hillside is
a 04168-g sample of a compound known to contain only carbon hydrogen and oxygen was burned in oxygen to yield 07745 g
if a 100 kilogram person was standing in the elevator and it accelerated downward at 3 ms2 a write the equation for the
why are yeast included amongst multicellular decomposer though they have a unicellular body function of
a 5000ml solution of 0100m cd2 is titrated with 0100m edta buffered at a ph of 72 what is the cd2 concentration at the
a 123-kg monkey is hanging by one arm from a branch and swinging on a vertical circle as an approximation assume a
using the concepts of equilibrium and le chateliers principle explain why oxygen moves from the air in the lungs to
two block each of 30 kg are held by strings the upper string exerts a force f of 100 newtonswhat is the force exerted
a long glass tube sealed at one end has an inner diameter of 100 mm the tube is filled with water and inverted into a
a horizontal wire of length 30 m carries a current of 60 a and is oriented so that the current direction is 50deg s of
a proton is released such that it has an initial speed of 40 105 ms from left to right across the page a magnetic
suppose there is significant air resistance in addition to the spring force acting on the mass as it oscillates up and
the reaction takes place at around room temperature in solvents such as the specific rate constant at 293 is found to
assuming the difference in relative boiling points of methyl acetate bp 57 oc and 2-butanone bp 80 oc is caused by the
suppose that a cart is given a push up the ramp and released it moves up reverses direction and comes back down again
propionic acid and methyl acetate are isomers which has the higher boiling point and why which one would have the