El agua pasa por un tubo horizontal con un gasto de 3,46l/s. ¿Cuál es la velocidad del fluido en un punto donde el área de la sección transversal es 9cm ?​

if you answer my question i will answer yours

increase masses, decrease separation

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form