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A sample of wusite Fe.93O1.00..find the % of Fe(III)in the sample... ...
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Why AlCl3.6H2O is electrovalent..whereas AlCl3 is covalent?plzzzz.. help. ...
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Particles P and Q of mass 20gm and 40 gm respectively are simultaneously projected from points A and B on the ground.The initial velocities of P and Q make 45° and 135° angles with points A and B on the ground.Each particle ...
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Why at the boiling point..the vapor pressure equals to atmospheric pressure? ...
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why the earth has an elliptical orbit? ...
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Why does the earth move in an eliptical orbit? ...
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Suppose,A belt of iron is tied along the diameter of the earth...after a gap of 6cm,another belt is tied around the earth...a coin of rs.1 is dropped between the gap,will the coin hit the ground? ...
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*Image* The rays are parallel to each other. What angle will the emerging rays will make with each other? please give me the steps. ...
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6!/r!(8-r)!=1 solve for r ...
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prove that for all integers n>1, 1/n+1+1/n+2+/n+3.....1/2n>1/2 ...
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if 1/a+1/b=1/c,and a,b,c have no common factor...then prove that a+b is a perfect square. ...
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A triangle,a circle,and a square are isoperimetrical.Arrange the areas in increasing way. Please urgent. ...
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If a circle of radius r is inscribed in a n-sided regular polygon,and the perimeter is 2p,find the polygon's area. ...
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(1.2.4+2.4.8+3.8.12...to n terms/1.3.9+2.6.18+3.12.27+.....to n terms) plz...i need it urgently that's why i am posting here,otherwise i would post it in 9-10.sry. ...
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can alpha and beta decay occur in a same molecule(radioactive needless to say)? ...
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find the min value of 4sin2θ+9cosec2θ ...
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Does Newton's law of motion is applicable for explosion? yes...when..there is no matter of force..instead of there is kinetic energy..but nwton's law does not deal with K.E. stuck. ...
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Can any one explain The mpemba effect illucidately.. that is... The hot water freezing before the cold....I can't make out.. ...
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A kilo of iron and a kilo of feathers have same mass.... But in vacuum the scale will tilt toward the feathers..though they weigh same....YA BOSS.... Why? ...
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In the outer atmosphere the temp. remains 500°C.But an animal would freeze instead of boiling,explain why....... ...
