Physics, 10.03.2020 04:39 cakeisalie6865
The frequency fd of a damped harmonic oscillator is 100 Hz, and the ratio of the amplitude of two successive maxima is one half.
a. What is the undamped frequency f0 of this oscillator?
b. What is the resonant frequency fr?
Answers: 1
.
∵ 
![f_{o} = [f_{d}^{2} + (\frac{Y}{2\pi })^{2} ]^{\frac{1}{2} }](/tpl/images/0539/9890/cc72e.png)
∴ W= 2πf![f_{o} = f_{d}[ 1+ (\frac{ln2}{2\pi })^{2}]^{\frac{1}{2} }](/tpl/images/0539/9890/8f942.png)
∵ 
![f_{r} ^{2} = [ f_{d} ^{2} -(\frac{Y}{2\pi } )^{2}]} ^{\frac{1}{2} }](/tpl/images/0539/9890/16efe.png)
∵ W =2πf![= f_{d}[ 1- (\frac{ln2}{2\pi })^{2}]^{\frac{1}{2} }](/tpl/images/0539/9890/76fde.png)
Another question on Physics
Physics, 22.06.2019 02:30
Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference
Answers: 1
Physics, 22.06.2019 09:00
When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical
Answers: 2
Physics, 22.06.2019 09:50
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors
Answers: 1
Physics, 22.06.2019 13:50
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
You know the right answer?
The frequency fd of a damped harmonic oscillator is 100 Hz, and the ratio of the amplitude of two su...
Questions
Mathematics, 28.07.2019 10:00
History, 28.07.2019 10:00
Computers and Technology, 28.07.2019 10:00
Computers and Technology, 28.07.2019 10:00
Mathematics, 28.07.2019 10:00
English, 28.07.2019 10:00
