An earthquake of magnitude _________________ on Richter scale has thousand times more destructive energy than an earthquake of magnitude 4.
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Friction is caused by the ______________ on the two surfaces in contact.
What is the direction of torque?
What is the value of acceleration due to gravity on the surface of the earth?
What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?
A high jumper runs for a while before taking a high jump so that the inertia of __ helps him take the long jump.
A conductor having some appreciable resistance is called a
Find the acceleration (in m/s2) produced in a body of mass 4 kg when a force of 24 N is applied on it.
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