Xfa 1. Una joven sentada en el puerto de La Palma observa que en un minuto 20 crestas de las ondas del agua golpean uno de los postes del puerto y que la distancia media entre crestas sucesivas es de 1,5m. Calcular: a) La frecuencia de las ondas b) El periodo de las ondas c) La rapidez de propagación.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.