Se apoya un edificio en una losa de cimentación de concreto reforzado que cubre un área de 12x24mts. el subsuelo es una arcilla que tiene una Resistencia a la Compresión Simple de 9.3 ton/m2. La presión en el suelo, debido al peso del edificio y a las cargas que va a soportar será de 11.37 ton/m2. en la base de la cimentación. Si el peso volumétrico del suelo excavado es 1950 kg/m3. ¿a qué profundidad deberá desplantarse el lecho inferior de la cimentación.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?