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the world record for lowest pressure at sea level was 6525 mmhg recorded inside typhoon tip on october 12 1979 in the
when a newtons ring apparatus is immersed in a liquid thediameter of the eighth dark ring decreases from 292 cm to248cm
the half life of uranium-238 is 45 x 109 yr a sample of rock of mass 16 g is found to produce 29 diss assuming all the
a describe the roles played by max planck niels bohr erwin schrodinger paul dirac albert einstein and werner heisenberg
the planet saturn has a mass 952 times that of the earth anda radius 947 times that of the earth find the escape
a 470 ml solution of 0155 m iron iii perchlorate is prepared this solution is then titrated with 184 ml of 0250 m
1 a solutions of hydrochloric acid was formed by dissolving 152g of hydrogen chloride gas in enough water ti make 241
the pressure change outside a house is 1000mmhg the roofhas two halves each with the area of 61045m2 at an angle of
ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced equationn2g 3h2g
a one mole sample of a monatomic perfect gas with a constant pressure heat capacity of 2085 jkmol is initially at a
a body of mass 12kg is moving with a velocity of 1mscalculate the force required to stop it in 10s how far will it
the concentration of cu2 ions in the water which also contains sulfate ions discharged from a certain industrial plant
a particle moves along the x axis of frame s with velocity 040c frame s moves with velocity 060c with respect to frame
a 450g sample of an alloy was heated to 900c and then droped into a beaker containing 820g of water at 235c the
a hydrogen like ion mg 11 drops from its n2to its n1 level what is the wavelength of the photonemitted what sort of
what pressure is needed to confine an ideal gas to 1930 l after it has expanded from 110 l and 09 atm at constant
an ideal monatomic gas consisting of 273 mol of volume00805 m3 expands adiabatically theinitial and final temperatures
how will you prepare the following solutions 80 ml of 10 m hc2h3o2 and 80 ml of 010 m nh3 from a 69 solution of acetic
a ceiling fan is turned on and reaches an angular speed of120 rpm in 20 seconds it is turned off and comes to a stop in
a body moves with shm and passes two points a and b 56cmapartwith the same velocityhaving occupied 2s in passing from a
ethyl alcohol c2h5oh has a density of806 kgm3 and a volume of 134 10-3m3a determine the mass in kg of a molecule of
an aqueous solution of unoxygenated hemoglobin containing 5g of protein m64000gmol in 100cm3 of solution is placed in
a beaker that contains 3500 ml of water weighs 8495 g and the mass of an alka seltzer tablet weighs 298 g addition of
for the lanthanoids the 4f orbitals are small and do not participate in bonding assume however that the 4f orbitals are
a radar has a resolving power of 30 m at a range of 10km what is the minimum width of its antenna if its operating