Recent content by 1/2"

  1. 1

    Getting two different integrals for same function(?)

    Actually it has got limits - 0 and \frac{∏}{2} And putting the limits the answer in the first case come as \frac{∏}{2} and in the second one -\frac{∏}{2} Ya the difference is a constant arctan ∞ = \frac{∏}{2} If I happen to give either of the answer will it be marked correct ? or...
  2. 1

    Having trouble with an integral

    ∫cscx dx = -ln( csc x + cot x)
  3. 1

    Getting two different integrals for same function(?)

    Homework Statement The actual problem is ∫sin2x/((sinx)4+(cosx)4) dx Homework Equations The Attempt at a Solution First wrote the expression as ∫\frac{2sin2x}{((sinx)^2+(cosx)^2)^2+((sinx)^2-(cosx)^2))^2 } dx then I changed the 2dx to d(2x)...
  4. 1

    Why Aren't My Calculated Currents Correct in This Circuit Analysis?

    Homework Statement In the given circuit find the current i1,i2,i3. (Image of the circuit is attached) Homework Equations current=(emf)/total resistanceThe Attempt at a Solution The original question actually asks me to find the currents using Kirchoff's laws .Since I feel this method to be a...
  5. 1

    How does diazomethane react with a diketone?

    Homework Statement What are the products when 1-phenylbuta-1,3-dione reacts with diazomethane in presence of ether? Homework Equations The Attempt at a Solution I tried to do it this way: Since carbonyl carbons of 1-phenylbuta-1,3-dione , one of them might get attacked by the...
  6. 1

    Free body diagram of man in a box

    Homework Statement A 60 kg man stands in a 30 kg box on a light weighing machine. If the box is kept at rest due to force applied by the man by the rope , what is the weight shown by the weighing machine? Homework Equations The Attempt at a Solution .answer given in book is 15...
  7. 1

    Work Done by Torque on Square Plate of Mass M

    Can please be more elaborate ? I reaaly appreciated your help,Thanks.:smile:
  8. 1

    Work Done by Torque on Square Plate of Mass M

    Homework Statement In the figure shown a square plate of mass M and side of length L is fixed at the center . The force F makes the square plate rotate. The force is always perpendicular to the side. Find the work done by the force. Homework Equations Work = torque x θ The Attempt...
  9. 1

    Finding acceleration in the system

    Homework Statement Find the acceleration of Blocks A and B in the given situation (Picture attached) Homework Equations ~ The Attempt at a Solution In this case I tried to do the free body diagram (i don't even know if its correct or not) Block B has two tension forces...
  10. 1

    Resistance of A to B in Current Electricity Homework

    resistance in between the parallel line of H... how do i combine it with others??:cry: (Thanks A LOT for answering!:smile:)
  11. 1

    Resistance of A to B in Current Electricity Homework

    Homework Statement Find the resistance between the A and B( image attached)Homework Equations The Attempt at a Solution I could only simplify the diagram to this (2 attached pic) and i can't proceed any further since i can't identy find any parallel or series circuit/
  12. 1

    Free body diagram(its simple but i don't know why i can't understand it)

    Homework Statement If a 4kg block is placed on top of a 5kg block which placed on a friction less plane and a force is applied on the lower 5kg block ,For what maximum value of force will the top block not slide ? μ=0.036 Homework Equations The Attempt at a Solution The maximum static...
  13. 1

    Aromatic Nomenclature: Name This Compound

    Homework Statement I have attached the picture of the compound .I can't figure the name , and the aromatic nomenclature is making me dizzy.:cry::cry: Homework Equations The Attempt at a Solution I know ether is named as alkoxy benzene and 2 benzene ring attached is called...
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