= 1 mm A thin layer of oil with viscosity μ = 0.07 Pa s and thickness h coats a solid wedge as shown. A block with mass m = 5 kg slides on the oil under the influence of gravity. The contact area between the block and the oil is A = 0.15 m². What is the terminal velocity of the block? You can assume that the oil velocity profile is linear in the gap between the block and the wedge, and that gravity-driven flow of the oil is negligible. V thin film with thickness h 20°

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.