Physics One

to the movement a speed in astronomy corresponds to him can be the radial one of a body, the one of a celestial body throughout the line of sight. Example: in straight direction from or towards us. The radial one of stars is generally, of a ten of kilometres per second: but it can get to be several hundreds of kilometres per second. The one of the galaxies he is much greater, reaching, in but the remote ones, one of almost half of the light. but we wished to approach the Speed in Physics we must consider that is a physical magnitude that espresa the space crossed by a reason, in the time unit. measurement of a reason, for a certain time interval, is obtained dividing the space crossed by this time interval.

Usually one expresses in meters/seconds. Cm/seconds. Km/hour, knots, miles. ETC. the movement brings with himself the acceleration which undergoes a Variation of the speed in the time unit. Symbol " to " she is positive if the speed increases, refusal if it decreases, of the gravity of a body in the emptiness. It varies of a maximum in the poles to a minimum in the Equator: it falls with the height.

At the rate of the squared one of the distance to the Earth center. this was what queria to say to you about Zenn de Elea we happen to our following philosophers. 23 2007 Jose Orlando Melo Naranjo The movement is mere illusion of our senses. Zenon de Elea sets out to polish, like that sharpens a knife, a series of incontrovertible arguments that demonstrate that the movement is unthinkable; that we cannot logically, rationally, think it because we arrived at absurd. With this method of constant paradigm that uses the Greeks, like Serving dish, and that uses later Aristotle. Zenon also exemplifies its reasonings, and in addition, with this taste that have the Greeks, between artists and sophists of 2007 Jose Orlando Melo Naranjo 24 These arguments that to several seem simple to them are not as simple as they seem.

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