Question

A spring mass system with m=0.02 kg., spring
constant 72 Nm-1 and damping constant 0.2
kgs-1 is subjected to a harmonic driving force.
Calculate its natural frequency and resonant
frequecy. How do these compare? What is the
physical significance of your result?​

Answer 1

Explanation:

Filtration technique can be used to overcome this as well. Thus, filtration is better than sedimentation and decantation.

Decantation is a process for the separation of mixtures

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Answer 2

Sit in front of a piano sometime and sing a loud brief note at it with the dampers off its strings. It will sing the same note back at you—the strings, having the same frequencies as your voice, are resonating in response to the forces from the sound waves that you sent to them. Your voice and a piano’s strings is a good example of the fact that objects—in this case, piano strings—can be forced to oscillate but oscillate best at their natural frequency. In this section, we shall briefly explore applying a periodic driving force acting on a simple harmonic oscillator. The driving force puts energy into the system at a certain frequency, not necessarily the same as the natural frequency of the system. The natural frequency is the frequency at which a system would oscillate if there were no driving and no damping force.