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1. Discuss the phenomenon of dispersion.
2. Discuss the concept of group velocity with the aid of an example.
3. What is a dispersion diagram? Explain how the phase and group velocities can be determined from a dispersion diagram.
4. When is it meaningful to attribute a group velocity to a signal comprised of more than two frequencies? Why?
5. Discuss the propagation of a narrow-band amplitude modulated signal in a dispersive channel.
a mass of 1000kg hangs at the end of a steel rod 5.0m in length. The diameter of the rod is .8 cm and young's modulus for the rod is 210,000NM/m^2. what is the elongation of the rod
The medical profession divides the ultraviolet region of the electromagnetic spectrum into three bands: UVA (320-420 nm), UVB (290-320 nm), and UVC (100-290 nm). Find the frequency range associated with UVB radiation
The fastest growing plant on record is the Hesperoyucca whipplei. Suppose a plant of this type grows 2.3 m in 14 days. What is its growth rate in micrometers per second
Ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens. How much energy is deposited in the beef
A motorcyclist heads due north at 20.0 m/s. At a fork in the road, she veers right, ending up with speed 16.0 m/s directed 30° east of north. Find the change-in-velocity vector in component form
A space station is constructed in the shape of a wheel 16 rm m in diameter, with essentially all of its 6.0×10^5 rm kg mass at the rim.
A bird flies 3.6km due west and then flies 1.2km due north, What is the angle between the net displacement vectors of the 2 birds
Two identical diverging lenses are separated by 17 cm. The focal length of each lens is -5.8 cm. Determine the final image distance relative to the lens
A series RLC circuit has a peak current of 1.0 A with a frequency of 7 kHz. determine the average power of the circuit over one cycle
A 1.0--diameter oil droplet (density 900 kg/m^3) is negatively charged with the addition of 28 extra electrons. What is the surface charge density of the plane
A simple harmonic oscillator is constructed from a spring which is connected to a mass of 0.3 kg. What is the total energy of the oscillation
In a rear-end collision the automobile that is accelerated to a velocity V in 0.01 s. What is the minimum velocity at which there is danger of neck fracture from whiplash?
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