Recent content by rl.bhat

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    Thermal Expansion: Finding common temperature (Ring/Sphere)

    In the case of ring, you have to consider linear expansion, not the areal expansion. Similarly in the care of sphere you have to consider volume expansion.
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    Electric charges and fields: Crossed dipoles

    For the dipole along y-axis, the point ( a,0 ) lies on the equatorial line and the electric field is along - y axis.
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    Electric charges and fields: Crossed dipoles

    Yes. Along -y axis. Now calculate net electric field at ( a,0)
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    Electric charges and fields: Crossed dipoles

    Check the direction of the electric field due to a dipole along the equatorial direction.
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    Change in Entropy of an expanding gas

    General formula for change in entropy is given as S2 - S1 = CV[ln(T2 / T1) - ln(V2 / V1)] + CPln(V2/V1)
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    Thermal Expansion of a circular steel plate

    = (.070685m^2)(1 + 2 (12 x 10^-6)(330 C)) It should be = (.070685m^2)[(1 + 2 (12 x 10^-6)(330 C)] Now try.
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    Buoyancy, depth a block will sink in two different liquids

    When the block in equilibrium, the net pressure on the block is zero. Since the density of the block is more than the density of liquid, it will submerge completely in the liquid and partly in the water. Now net upward pressure on the block = pressure due to liquid + pressure due to water.
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    Kinematics Word Problem - Projectile Fired at a Stationary Vehicle

    The passenger can pull the projectile into the vehicle, when his velocity is equal the velocity of the projectile. That gives you one equation. Difference between the distances traveled by the projectile and the vehicle is given. That gives you the second equation. Solving these two equations...
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    How Is Acceleration Calculated in a Pulley System with Unequal Masses?

    Same tension T is acting on m and 2m. So the displacement in m is greater then 2m. The lengths of the vertical segments must be the same. Hence at any instant, the total length of the string L = x1 + x2 + 2x.Taking derivative, you can find the relation between the accelerations of m, 2m and...
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