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- Show that, if a driven oscillator is only lightly damped and driven near resonance, the Q of the system is approximately Q2(TotalenergyEnergylossduringoneperiod)Check Your Understanding Why are completely undamped harmonic oscillators so rare?Write the vector function for the harmonic oscillator using the generator function, then find the expected value of the position
- Consider a small mass performing simple harmonic motion with angular frequency 10 rad/s. If we know that at t = 0 the mass is at ro = +5 cm moving to the right at +87 em/s, and we want to represent the oscillations using a cos function then.. (a) Find the amplitude of the oscillations (b) Find the phase constant of the oscillations (c) Find the maximum speed of the mass (d) Find the maximum acceleration of the massWhat is the curl of the linear restoring force for an isotropic harmonic oscillator?A 5-kg mass is attached to a spring with stiffness k= 20 N/m. The mass is displacedm to the left of the equilibrium point and given a velocity of 1 m/sec to the left. Neglecting damping, find the equation of motion of the mass along with the amplitude, period, and frequency How long after release does the mass pass through the equilibrium position? The solution to the initial value problem is y(t) = and the natural frequency of the motion is (Type exact answers in simplified form.) The amplitude of the motion is A=m, the period of the motion is The mass passes the equilibrium position after seconds. (Type an exact answer.)
- At what distance is the K.E. of a particle performing S.H.M. of amplitude 10 cm, three times its potential energy?Consider a Critically damped oscillates ficient b, m, damping mas Co- Dand initial displacementA. Calculate the rate af energy dissipation. and He total enesgy dissipated duling interval t-o and ta m the timeA block of mass m = 0.1 kg attached to a spring with s = 40 Nm-¹ is subject to a damping force with r= 0.1 kg s ¹. (a) Calculate the magnitude Fo of the constant force required to move the equilibrium of the block from x = 0 to x = 15 cm. (b) If this force Fo were the amplitude of a harmonic driving force with non-zero we, what would be the steady-state amplitude of oscillations of the block at velocity resonance?
- Ql: (Section A) Considering single degree undamped vibration system and Newton's equation as follow: më +kx=0; find the solution of the displacement equation [(t)=Cietwnt+C2e¬i®n'] for the case with: Wn = 2 rad/s, x (0) = 1 mm, and x(0) = V5 mm/s. (Section B) Given the matrix equation of motion of a two degree-of-freedom system 2k -k ||x, = 0 -k 4k ||x2 Зт as: m ||*. Determine (a) the natural frequencies, (b) the modes shapes.Function y 2(sin(4x – 7) – 4) , determine its amplitude, phase shift and period.O mr - 2mrre- mgr sin e wU A simple pendulum of length b and bob with mass m is attached to massless support moving vertically with constant acceleration a. The Lagrangian of the system is Select one: OL-m(a*e - 2atblcond + b") + OL-m(a* - 2atbésind + b0") + mgbaino OL=m(a* + 2atbbsind + P0) + mg(b cos-at") OL- m(a*t - 2atbdcose + 6*0) + mg(b sind-at"). zed coordinates you need to describe this system