Show that the impulse response of a spring-mass-damper system is equivalent to free vibration of the system with initial conditions o 0 and vo 1 m/s for all values of the viscous damping factor.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

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

Acircular aluminum shaft mounted in a journal is shown. the symmetric clearance gap between the shaft and journal is filled with sae 10w-30 oil at t 30°c. the shaft is caused to turn by the attached mass and cord. develop and solve a differential equation for the angular speed of the shaft as a function of time.