Unos rieles de ferrocarril están fabricados con un acero con 0.25 % de C, que posee un coeficiente de dilatación lineal α 1.1 x 10 -5 C-1y fueron instalados una época del año en que la temperatura promedio fue de 5 oC. Si en la unión de los rieles, cuya longitud es de 11.9 m, se deja un espacio de 5 mm, ¿cuál es la temperatura más alta que puede ser tolerada antes de introducir tensiones al material?

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.