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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.
Two people are pulling a mule, assume the F1 is 110 N and F2 is80 N. I found the single force that is equivalent to the two forcesfor magnitude and direction but I need to find out the force that a third person would have to exert on the mule to make..
A body is thrown vertically upward. when it passes a point H above its starting point, its velocity is 1/3 its initial velocity. How high does it rise above its starting point
If 200 J of heat is removed from a hot reservoir at 800 K by an engine cycle, what is the minimum amount of heat that the cycle must dump into a cold reservoir at 300 K
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown directly forward
A plane, diving with constant speed at an angle of 49.0° with the vertical, releases a projectile at an altitude of 560 m. The projectile hits the ground 6.00 s after release. What is the speed of the aircraft
a 5 litre pressure vessel contains 200g of propane. using the peng robinson eos calculate the pressure in the vessel
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In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground. what is the direction of its velocity just before it lands
Two particles moving under the influence of their mutual gravitational force describe circular orbits about one another with a period T. If they are suddenly stopped in their orbits and allowed to gravitate towards each other, show that they would..
What is the coefficient of kinetic friction between the crate and the floor. what height will the stream of water strike.
How much energy is stored by the electric field between two square plates, 8.1cm on a side, separated by a 2.5-mm air gap
On a frictionless track, a 0.55 kg cart is traveling at 0.70 m/sec when it runs into a spring that is anchored to the end of the track. what is the original kinetic energy of the cart as it approached the spring
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