Recent content by raghav singh

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    Self Inductance of a Cylindrical Current-Carrying Wire

    Consider a solid cylinder of radius R. an varying current of current density δ flows through. what would be self inductance of that cylinder
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    Question about freely falling objects

    simple calculation.. considering down as positive... h=ut+1/2at.t h=30 m a= 10 m/s.s u=-5m/s 30=-5t+5t.t t=3 s
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    Question about freely falling objects

    simple calculation.. considering down as positive... h=ut+1/2at.t h=30 m a= 10 m/s.s u=-5m/s 30=-5t+5t.t t=3 s
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    Solving Kinetic Friction: Find Coefficient of Friction from Car Stop

    You can apply simple formula... calculate the acceleration 'a'... by (square of final velocity)-(square of initial velocity)=2x a x distance a=20x20/(2x40) a=5 balance the force uk x mass x g = mass x a uk=a/g uk=5/10=0.5
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    Relativity Paradox: Is Moving at Speed of Light Possible?

    you can't assume light ray to be stable... since it is the basis of relativity that a photon moves wid the velocity which is actually 299792458 m/s irrespective of the speed of the observer... reply ur comments
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    Volume control in mobile phones

    see there are various ways to control volume but the best way can be explained as follow,,,, source of production is same hence volume is controlled using amplifiers to increase or decrease the extent of sound ,,we call it as volume
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    Where Should I Place the Gaussian Surface When Applying Gauss's Law?

    a surface to be chosen as Gaussian surface where all of the electric field lines are perpendicular to that surface... remember.. flux=ExA cos(angle bw area vector of the surface and electric field lines) if u like the answer then support
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