18. *** Las magnitudes de los cuatro vectores de desplazamiento que se muestran en la figura son A -16.0 m. B-11.0 m, C -12.0 my D- 26.0 m. a) Determine la magnitud, y b) el ángulo
direccional de la resultante que ocurre cuando estos vectores se suman.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.6 m below the tank bottom which is a = 6.7 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute). report your answer in meters to two decimal places.