Good solution A machine weights 18 kg and is supported on springs and dashpots. The equivalent stiffnessof the springs is 12 N/mm and the damping factor is 0.215. The system is initially at rest and avelocity of 120 mm/s is imported to the mass. Displacement of the machine as a function oftime is given by equation.x Xe-at sin (bt + )mmValue of X in the above equation will be(a) 5.55 mm(b) 8.37 mm(c) 3.83 mm(d) 4.76 mm

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Engineering

Mechanical Engineering

chir

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

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Good solution

A machine weights 18 kg and is supported on springs and dashpots. The equivalent stiffness
of the springs is 12 N/mm and the damping factor is 0.215. The system is initially at rest and a
velocity of 120 mm/s is imported to the mass. Displacement of the machine as a function of
time is given by equation.
x Xe-at sin (bt + )mm
Value of X in the above equation will be
(a) 5.55 mm
(b) 8.37 mm
(c) 3.83 mm
(d) 4.76 mm

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