two stable isotopes of lithium and have
Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium. Ans)(6.01512*7.5/100)+(7.01600*92.5/100)=6.940934
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accelaration is the rate of change of velocityit defines how velocity is chaging with respect to
a boy standing in the middle of a field observes a flying bird in the north at an angle of elevation fo 30 degree and after 2 min he observes the
sin10sin20sin30sin3600sin10sin20sin30sin40sin180sin360-170sin360-40sin360-30sin360-20sin360-10sin360sin360-x-sinxhence all terms cancel and
if tanxsecxsqr rt 3 0ltxlt180 then x is equal toans
two stable isotopes of lithium and have respective abundances of 75 and 925 these isotopes have masses 601512 u and 701600 u respectively find the
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i have tried to do an experiment where i tried to check the direction of the net force by water on a body i have some question regarding some
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