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a car starting from rest has a constant acceleration ‘a1’ for time iterval ‘t1’ during which it covers a distance ‘s1’. in the next time interval ‘t2’ the car has a constant retardation ‘a2’ and comes to rest after covering a distanc ‘s2’ in time ‘t2’. the average speed of the car during its entire journey is given by?
3629 views
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June 26, 2017
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Copper has the atomic no. 29 and as per the rule it’s electronic configuration should be 2,8,8,8,3. But i have read somewhere that it’s electronic configuration is 2,8,18,1. So how it is possible, explain briefly
825 views
doubts
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June 26, 2017
Class 09 - Chemistry
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Applications of Solids in our daily life.
767 views
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June 26, 2017
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A light spring of spring constant k is kept compressed between two blocks of masses m and M on a smooth horizontal surface . When released, the blocks acquire velocities in opposite directions. The spring loses contact with the blocks when it acquires natural length. If the spring was initially compressed through a distance x , find the final speeds of the two blocks .
826 views
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June 26, 2017
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hello sir…. i want to ask question about capacitor …..in ur 1st lecture of capacitor….u hve asked a ques. that if distance b/w 2 capacitors is doubled then electric field doesn’t changed……why this happens???? and i want u to see this ques. through the formula:: dv=integration of -E.dr…,.,.
641 views
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June 26, 2017
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explain any three challenges that still remainds to be tackle. in the way to eraducate poverty
681 views
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June 26, 2017
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To conduct electricity we need free electrons. Like carbon doesn’t conduct because it don’t have free electrons but how copper conduct electricity because it’s valency is 3. So how it conduct electricity
619 views
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June 26, 2017
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Copper’s atomic number is 29. Will copper make ionic or covalent bond. Draw Diagram for the Bond.
947 views
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June 26, 2017
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What is the derivation for centripetal acceleration ?
649 views
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June 26, 2017
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World bank says that if one earns more than Rs 65 a day than he is above poverty line, but on the other hand we had made poverty line Rs 28 a day. Which one can be said as more appropriate?
618 views
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June 26, 2017
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How to find total number of structural isomers of organic compoun mathematically? Is their any maths formula to find it?
749 views
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June 26, 2017
Class 10 - Chemistry
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ABCDEF is a regular hexagon with point O as a center. Prove that the value of AB+AC+AD+AE+AF is 6AO
905 views
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June 26, 2017
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is it necessary that when the object is at front of a convex mirror, the image formed will be btw f and p… because when i drew it, the image formed was exactly at f
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June 26, 2017
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protective covering of animal body
720 views
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June 26, 2017
Class 09 – Biology
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moon receives suns light and reflect it to earth, in the same way earth also receive suns light so where does earth relects the light?
717 views
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June 26, 2017
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let x and y are two supplementary angles give a equation for this equation and draw the graph find other angle if a=120 b=180
659 views
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June 26, 2017
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the age of rahul is 3 years more than twice the age of shital write a linear equation in two variable
729 views
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June 26, 2017
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find the sum of the following: (1-1/n) + (1-2/n) + (1-3/n) + …. upto n terms.
778 views
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June 26, 2017
Class 10 - Mathematics
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discuss the last moments that franz witnessed in the class? on the last day of the french lesson.
1305 views
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June 26, 2017
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if two objects m1=9*10 to the power9 m2=9*10 to the power 6 m1 attracts m2 towards itself or or equal forces are applied to each other
658 views
doubts
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June 26, 2017
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16
What is the difference between mass and weight
What is the difference between mass and weight
