A piece of pipe 0.5 m long weighing 9.81 N and having internal diameter of 5.25 cm is slipped over a vertical shaft 5 cm diameter and allowed to fall. Calculate the approximate velocity attained by the pipe if a film of oil of viscosity 0.196 Ns/m2 is maintained between pipe and shaft.
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but parasite are those animals and plants who used to consume food from other plants and animals which is called host. ... scavengers clean the environment by eating decomposing animal or plant dead body. 3. parasite harm their host by causing disease.
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