A1 gram mass is connected through a spring of stiffness 4 n/m and a viscous damper that has a damping ratio of 0.6 to a base whose displacement is 3x106 m at a frequency of 150 rad/s. what is the amplitude of the displacement of the mass relative to the base?

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