Una máquina industrial que pesa 4,905 N es soportada por 8 resortes helicoidales con una constante de rigidez individual de 16,000 N/m. Si una fuerza armónica F(t)=150∙sen(125t) N actúa en el sistema, determine: (a) la amplitud de vibración y (b) el ángulo de fase de la vibración.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

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