Recent content by leojun

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    Friction problem involving a block and pulley on a ramp....

    Homework Statement In the system, find minimum weight of the block 'B' to start the motion of the block 'A' up the plane.weight of block 'A' 10 KN. The angle of friction for the block and the incline,between the pulley and the string may be assumed as 15° (assume pulley is locked) Homework...
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    Does the Magnus Effect Decrease Speed in Sports?

    does speed decrease MAGNUS EFFECT?
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    Relation between integration and differentiation?

    relation between integration and differentiation ? how is instantaneous slope(differentiation) related to area under the curve(integration) ? thank you!
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    Radius of curvature using spherometer

    SORRY,"a" in the second formula is the same as "d" in the first formula
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    Radius of curvature using spherometer

    We use second formula instead of the first formula to find the radius of curvature using spherometer. "a" in the second formula is the same as "b" in the first formula. The first formula is correct but i don't get why we use second formula instead of first. The two formula's are supposed to be...
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    Radius of curvature using spherometer

    which formula is correct? or
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    What happens to the minor charge carriers in p-n junction diode

    what happens to the minor charge carriers in p-n junction diode when forward biased?
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    Is it really ok to assume that internal resistance of a cell is 0?

    is it really ok to assume that internal resistance of a cell is absent in a circuit ?
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    Why isn't solution state a true physical state ?

    why isn't solution state a true physical state but a pseudo state?
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    How Does d-d Transition Occur with No Free Higher Energy d-Orbitals Available?

    To be true,i didn't know that there was a VB theory way to explain it.i thought VB theory and CF theory were interrelated. what i thought- step 1 - coordination bond forms between ligand and central metal atom or ion forming complex ion step 2 - after the formation of complex ion,CF theory comes...
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    How Does d-d Transition Occur with No Free Higher Energy d-Orbitals Available?

    sorry for the disturbance brother,Dr Du . I wasn't satisfied,so i went to a near by book store and searched every single book on this topic.guess what i found...I FOUND THAT THERE WAS NO RELATION BETWEEN VALENCE BOND THEORY AND CRYSTAL FIELD THEORY(they are two different theories used to explain...
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    How Does d-d Transition Occur with No Free Higher Energy d-Orbitals Available?

    but there can only be two electrons in an hybridized orbital
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    How Does d-d Transition Occur with No Free Higher Energy d-Orbitals Available?

    nope,they form a special covalent bond called coordinate covalent bond with cn- and d-d transition happens within a transition metal or ion only.d-d transition doesn't happen between two atoms especially not with c.
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    How Does d-d Transition Occur with No Free Higher Energy d-Orbitals Available?

    how does d-d transition take place when there are no free higher energy level d-orbital's left(as the only two higher energy d orbitals form coordinate bond with CN-?
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    Does NH[SUB]3[/SUB] react with aldehyde ?

    does NH3 react with compounds having aldehydic group?(if,yes.why doesn't glucose react with NH3. 0.02% of glucose has open chain structure that has free aldehydic group) In my textbook its given that NH3 doesn't react with glucose and this led to the conclusion that glucose had ring structure...
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