A gong makes a loud noise when struck. The noise gradually gets less and less loud until it fades below the sensitivity of the human ear. The simplest model of how the gong produces the sound we hear treats the gong as a damped harmonic oscillator. The tone we hear is related to the frequency f of the oscillation, and its loudness is proportional to the energy of the oscillation.
(A) If the loudness drops to 80 % of its original value in 4.0 s , what is the time constant of the damped oscillation?
(B) How long does it take for the sound to be 20 % as loud as it was at the start?
(C) What fraction of the original loudness remains after 1.0 min?"
Answers: 3
Physics, 21.06.2019 20:30
Which statement best describes how private industry decides where to spend the money on research and development
Answers: 1
Physics, 21.06.2019 23:30
Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge
Answers: 1
Physics, 23.06.2019 01:00
The amount of heat required to change liquid water to vapor at its boiling temperature is 2256 kj/kg. the amount of heat required to change liquid mercury to its vapor state at its boiling temperature is 295 kj/kg. one kg of each substance is currently at its boiling point. how will the amount of thermal energy required to change each substance from a liquid to a gas differ?
Answers: 3
Physics, 23.06.2019 01:50
Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.
Answers: 1
A gong makes a loud noise when struck. The noise gradually gets less and less loud until it fades be...
English, 22.09.2019 06:20
Computers and Technology, 22.09.2019 06:20
Biology, 22.09.2019 06:20
English, 22.09.2019 06:20
Mathematics, 22.09.2019 06:20
History, 22.09.2019 06:20
Health, 22.09.2019 06:30