problem1) A manufacturer lists the specifications of a dynamic tension-compression load cell as follows:
Undamped natural frequency = 1000 Hz
Damping ratio = 0.707
Sensitivity = 10mV/lbf
Stiffness = 100,000 lbf/in
If a dynamic force as indicated in the Figure is applied to the load cell, Find out the steady-state output voltage as a function of time.
problem2) In the figure below, h = 86.1 meters. Compute the maximum energy per unit mass that the ideal turbine can extract from the water. Take the density of water to be 1000 kg/m3 and atmospheric pressure to be 101.325 kPa. Enter your answer in Joules to two decimal places.