Ablock 0.1 m square, with 5 kg mass, slides down a smooth incline, 30o below the horizontal, on a film of sae 30 oil at 20oc that is d = 0.20 mm thick. if the block is released from rest at t = 0, (a) derive an expression for the initial acceleration. (b) derive an expression for the speed of the block as a function of time. (c) find the speed after 0.1 s. if we want the mass to instead reach a speed of 0.3 m/s at this time, (d) find the viscosity μ of the oil we would have to use.

answer: cesare beccaria developed the classical school of criminology with from philosopher jeremy bentham

explanation:

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it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me