Calcula la presión de salida de agua que fluye por una tubería horizontal de 1 ½ pulgada de diámetro a una velocidad promedio de 1m/s, la presión inicial es de 10000 pa y la tubería se ensancha a 3 pulgadas.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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root word, prefixes, and suffixes

the answer to this is proletariats.

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54 degrees incident angle = reflected angle

angle is from normal turned to line of ray