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Question: Repeat Problem for TV channels, each requiring a bandwidth of 6 MHz.
Problem: A transponder with a bandwidth of 400 MHz uses polarization diversity. If the bandwidth allocated to transmit a single telephone channel is 4 kHz, how many telephone channels can be carried by the transponder?
A 30-g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at a boiling point of 77 K and has a latent heat of vaporization of 200 kJ/kg? Suppose for simplicity that the spec..
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to twice her weight as she goes through the dip.
A small spherical insulator of mass 6.75 x 10-2 kgand charge +0.600 μC is hung by a thin wire of negligiblemass. A charge of -0.900 μC is held 0.150 m away from the sphere and directly to the right of it, so the wire makes anangle with the vertica..
A 514-N physics student stands on a bathroom scale in an 814-kg (including the student) elevator that is supported by a cable. Find the magnitude of the acceleration of the elevator
A meter stick is found to balance at the 49.7cm mark when placed on the fulcrum. When a 41g mass is attached at the 23cm mark, what is the mass of the meter stick
a driver must change a tire that has a stuck lug nut. a torque of 288 inch-pounds is required to free the nut. how
one capacitor with two flat conductors are seperated with 4mm. the area of each plate is 5m^2. one plate has charge of +200mC , calculate the capacitance of the device
Two sinusoidal waves, identical except for phase, travel in the same direction along a string, producing the net wave y(x,t)=(6.0 mm)sin(24.0x -2.0 s-1 * t+0.320 rad), with x in meters and t in seconds. What is the wavelength ? of the two waves? W..
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 3.00 m/s upward. How long does the cork remain in the air
With an irradiance of 0.001 W/cm2 incident on a detector of area 0.5 cm2 and with a bandwidth of 2 Hz, the ratio of the noise voltage to the signal voltage is 10. What is the noise equivalent power of the detector
Suppose you do an experiment in which electrons come off a cathode and accelerate through 200V. Suppose these electrons enter a uniform magnetic field.
Erin holds the the 1.20-kg bob of a pendulum at a level at which its gravitational potential energy is 6.60 J, and then releases it. Predict the speed of the bob as it passes the point where its gravitational energy is 2.56 J.
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