En una sección del sistema de plomería, la velocidad del agua es de 4 m / sy la presión es de 4.8 x 104. encuentre que la presión en una segunda sección es el doble del valor de la primera.

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray