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A damped harmonic oscillator loses 11 percent of its mechanical energy per cycle.
(a) By what percentage does its frequency differ from the natural frequency f0 = (1/2\pi)\sqrt{k/m}.
(b) After how many periods will the amplitude have decreased to 1/e of its original value?
The magnetic field of the Earth is approximately 0.5 ×104 T. What current in a long straight wire would produce a field of equal strength at a distance of 6 cm from the wire
Calculate the wavelength of light in vacuum that has a frequency of 7.8 108 Hz. and What is its wavelength in carbon tetrachloride
A block of mass 2.89 kg is pushed 2.20 m along a frictionless horizontal table by a constant 13.0 N force directed 23.0° below the horizontal. calculate the normal force exerted by the table
The net horizontal force on a 53000 kg railroad boxcar is 4950 N. What is the acceleration of the boxcar
A well-insulated feed water heater (mixing chamber) mixes steam at 500oF with water at 80oF that flows at a rate of 8 lbm/sec. find the rate of entropy generation (in Btu/R sec) during the mixing process
What voltage V_AC should an electron be accelerated during if the maximum energy photon it produces is to promote a hydrogen atom from the n=1 to the n=4 energy level?
define the magnitude of the acceleration of the elevator. A 300 kg piano slides 4.1m down a 30 degree incline and is kept from accelerating by the man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction ..
A hydrogen atom at rest in the laboratory emits the Paschen ? radiation. Compute the recoil kinetic energy of the atom
If a charge of ?2.20 ?C is placed at this point, what are the magnitude and direction of the force on it
Explain the scientific method and describe the overall manner in which you would apply it in your field of study or everyday life.
If the ball is in contact with the player's head for 20 milliseconds, obtain what the average acceleration of the ball
You push a 325-N trunk up a 20.0 degree inclined plane at aconstant velocity by exerting a 211-N force parallel to the plane's surface. estimate the magnitude and direction of the friction force
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