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The f-block elements are also called as

f-block elements are called

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How many groups are there in p-block elements and d-block elements ?

In the system shown in the figure, all surfaces are smooth. Block A and B have mass m each and mass of block C is 2 m. All pulleys are massless and fixed to block C. Strings are light and the force F applied at the free end of the string is horizontal. Find the acceleration of all three blocks.

Three blocks are placed on smooth horizontal surface and lie on same horizontal straight line. Block 1 and block 3 have mass m each and block 2 has mass M (M gt gt m) . Block 2 and block 3 are initially stationary, while block 1 is initially moving towards block 2 with speed v as shown. Assume that all collisions are head on and perfectly elastic. What value of M//m ensures that block 1 and block 3 have the same final speed?