Recent content by aniketp

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    Farmers in India commit suicide over debts.

    It's not really cultural, but the truth is that the financial debts coupled with illiteracy make these farmers vulnerable to those looking to take an advantage. This ultimately drives them to suicide.
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    RC circuit and discharging a capacitor

    Are the R and C in series or parallel? :smile:
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    Very Simple Rotation Inertia of a Thin Rod Problem

    You could use the parallel axis theoram if you know how to find the M.I about the centre of mass of the rod (the centre) :smile:
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    Calculating pH of a Nitric Oxide Solution without Ka Value?

    In this problem, since no specific data is given, I assume the standard conditions. pH = -ln[H] You already know the concentration (4.5x10-8 + 10-7)M Just substitute and get the logarithm.:wink:
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    How Do You Determine the Mass of the Second Object in an Elastic Collision?

    It would be wiser to use the co-effecient of restitution here. The energy equation gets tedious. ;)
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    Rolles Theorem/ Mean Value Theorem + First Derivative Test

    I think there is one more condition here that f(a) = f(b) Otherwise there is the counter example of f(x)=ex
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    How Do You Determine the Mass of the Second Object in an Elastic Collision?

    how did you try to approach the problem?
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    Projectile Motion: Height of Second Building in Bag of Mail Catapult Experiment

    This should make things clearer. How do you think the given information helps??
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    Projectile Motion: Height of Second Building in Bag of Mail Catapult Experiment

    Make sure of what you are taking as the origin. If the point of launch is the origin, then you will have to take into consideration the height of the first building.
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    Projectile Motion: Height of Second Building in Bag of Mail Catapult Experiment

    See, you know the equation of the path of the projectile. You also know the horizontal distance (x-coordinate) of the top of the building wrt the point of launch. Substitute in the projectile equation to get the reqd Y co-ordinate.
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    What was the main source of oxygen on Earth before photosynthesis?

    It is the dissolved oxygen.
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    Resistance of a loop of wire: confusing

    I guess you could do it (find the resistivity) by introducing an ammeter at the resistance of length L (I mean the part of the loop of length L). Applying Kirchoff's Loop Law, we see that P.D across the EMF source is equal to the PD across the Resistance of length "L". Thus , E = i*R The "R" we...
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    Resistance of a loop of wire: confusing

    This i guess is the net result, which is to be used in plotting the graph to find out the resistance EDIT: at the risk of sounding stupid, what is not quite the same thing??
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    Resistance of a loop of wire: confusing

    I have simplified the circuit here. (forgive me, I am bad at paint ;)) Let the net resistance be Rnet (Rnet)-1 = (R1)-1 + (R2)-1 The net resistance will thus change if R1 and R2 change, though the sum remains constant. R1 and R2 change with the length as R is proportional to L.
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    Gravity in 2D Universe: 1/r Decrease?

    and 2d equivalent of solid sphere is a disc.
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