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a metal cube of volume 155plusmn 05 cm is found to weigh 210 plusmn 5 g a what is the density of the metal in kgm3
a water gun is filled and pumped up it is held horizontal and fired at a height of 95 m above the ground the water
construct a simulated 1h nmr spectrum including proton integrations for ch3chcl2 drag the appropriate splitting
a uniform ladder of mass 50 kg and length 5m leans at an angle theta against a frictionless wall if the coefficient of
a small airplane flies with a speed relative to the ground ground speed of 2190 kmh in a direction 200 degrees to the
consider the hydrogenation of a carbon nitrogen double bond cn ie adding a hydrogen on the carbon and nitrogen atoms
the velocity-time graph of part of a cyclists trip consists of a straight line between v 180 ms at t 130 s and v 0
a cannon fires a cannon ball at 99916 ms in a straight line that passes directly over an observers head if the
how does this work do you just omit the h20oh- calculate the value for the equilibrium constant for each of the
light of wavelength 730 nm illuminates a pair of slits separated by 0200 mm if a screen is placed 150 m from the slits
a liquid fuel mixture contains 2825 hexane 1405 heptane and the rest octanewhat maximum mass of carbon dioxide is
a laser beam is incident on two slits with a separation of 010 mm and a screen is placed 400 m from the slits an
any feedbackhow to would be great calculate the concentrations of all species present in a 025 m solution of
a certain cylindrical drum is 3 meters in height it filled with with water atmospheric pressure is 105 pa and the
calculate the ph of a 036 m solution of nahso4 if solid na2co3 is added to a solution of nahso4 what reaction occurs
calculate co32- in a 0045 m solution of co2 in water h2co3 if all the co32- in this solution comes from the reaction
an airplane is flying with a speed of 305 kmh at a height of 3750 m above the ground a parachutist whose mass is 822 kg
in an artificial transmutation process a nucleus of al-27 absorbs an alpha particle and emits a neutron what is the new
a mixture of 265 atm of h2 and 265 of i2 is contained in a 10l vessel at 430 c the qaullibrium constant kp for the
a mass m 24 kg is at the end of a horizontal spring of spring constant k 265 nm on a frictionless horizontal surface
ozoneo3 is destroyed when clo levels are high clo is likely formed from the decomposition of chlorofluorocarbons cfcs
the primary coil of a transformer has n1 390 turns and the secondary coil has n2 2 260 turns if the input voltage
a 16 kg ball is at rest on the floor in a 24 m 24 m 24 m room of air at stp air is 80 nitrogen n2 and 20 oxygen o2 by
calculate the standard enthalpy of formation of acetylene c2h2 from its elements 2cgraphite h2g -------- c2h2g use the