Efectos de la fuerza de coriolis, la fuerza de presión, la fuerza centrífuga y el rozamiento
La presión atmosférica
Como todo lo que hay en la Tierra, el aire es atraído por la fuerza de gravedad. Así podemos hablar de peso del aire. El peso del aire por unidad de superficie se denomina Presión Atmosférica. Imaginate que pesás 70 Kg y te subís a un tablero de 1 m2 de superficie, debajo de ese tablero estás ejerciendo una presión de 70 Kg/m2. La presión atmosférica se mide en Pascales y un Pascal equivale a 1 Newton por metro cuadrado. La presión atmosférica media es de 101320 Pascales, que equivale a 10.331 Kg/m2. ¡¡¡Nada despreciable!!!. ¿Por qué no nos aplasta? Porque el aire ejerce esa fuerza en todas las direcciones, por lo que en realidad no existe fuerza neta. Para que exista una fuerza debe existir una diferencia de presión.
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