El agua fluye a 6m/s por un tubo de 6cm2 de área, pasa a otro de 3cm2 de área conectado al primero, cual es la velocidad en el tubo pequeño?

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle

you can cut your hand off if your not

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.