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Two blocks in a system (b1 & b2) collide inelastically where b1 has a velocity (v)...

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Physics

Two blocks in a system (b1 & b2) collide inelastically whereb1 has a velocity (v) and a small mass (m) and b2 is stationarywith a large mass (M). b2 can absorb some of the collision similarto a spring that does not recoil with a stiffness of (k). When theblocks collide they will stick together. The plane that the blocksare moving on is horizontal and frictionless.

1)Find the change in internal energy (delta U)

2)If all of the energy change is stored as potential energy of aspring that cannot recoil find the distance of compression that thespring undergoes in terms of v, m and k.

3)Now assume that during the collision the surface is hot.Shortly after the collision the blocks reach thermal equilibrium.Find (delta U) a few seconds after the collision

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