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Where will a body weigh more at Delhi or at Shimla?

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The earths mass is 80 times that of moon and their diameters are in the ratio 4:1 respectively. What is the value of g on

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Show that value of g at a height h is same as the value of acceleration due of gravity at a depth `d =

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Why is gravitational potential energy always

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Assuming earth to be a uniform sphere finds an expression for density of earth in terms of g and

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If the potential energy is minimum at `r = r_o = 0.74A^o`, is the force attractive or repulsive at `r = 0.5A^o; 1.9A^o and

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A hollow shaft is found to be stronger than a solid shaft made of same equal material?

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The length of a metal is `l_1`, when the tension in it is T1 and is `l_2` when tension is `l_2`. Find the original length of

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Define modulus of elasticity and write its various

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Why is the force of repulsion responsible for the formation of a solid and not the forces of

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A boulder is thrown into a deep lake. As it sinks deeper and deeper into water, does the buoyant force

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Oil is sprinkled on sea waves to calm them.

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A drop of oil placed on the surface of water spreads out, but a drop of water placed on oil contracts.

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What is terminal velocity? What is the terminal velocity of a body in a freely falling

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The diameter of ball A is half that of ball B. What will be their ratio of their terminal velocities in

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A small ball of mass ‘m’ and density ‘d’ dropped in a viscous liquid of density ‘d’. After some time, the ball falls with a constant velocity. What is the viscous force on the

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Define

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Water flows faster than honey.

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What is terminal velocity and derive an expression for

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What is conserved in Bernoulli’s

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