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Fiber-optic communication came about in the 1970s due to advances in both optical cable and compact lasers capable of sending light over long distances through the optical cables. What benefit does fiber-optic communication provide over metallic wires?
Select one:
a. Fiber-optic cables are capable of sending information over a very long distance.
b. Fiber-optic cables have very high bandwidth with no electrical crosstalk or electromagnetic interference
c. Fiber-optic cables are widely available directly to most homes and do not need to worry about "last mile" problems.
d. Fiber-optic cable is very durable and easily repaired.
Suppose that yesterday your body had a mass of 50.0 kg. This morning you stepped on a scale and found that you had gained weight. What happened, if anything, to your mass? What happened, if anything, to the ratio of your weight to your mass?
By curving different isotopes through paths with different radii, a mass spectrometer can be used to purify a sample of mixed uranium-235 and uranium-238 isotopes. Assume that B = 5.00*10^-3 T, V = 55.0 V, and that each uranium isotope has a 5+ io..
A 28 kilogram child initially at rest slides down a playground slide from a height of 3.0 meter above the bottom of the slide. calculate the work done by non-conservative forces
The magnetic field at the center of a 0.900-cm-diameter loop is 2.70mT . A. What is the current in the loop? B. A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.70mT ?
A 170, 35.0 cm-diameter turntables rotate on frictionless bearings at 53.0. A 20.0 block sits at the center of turntable. A compressed spring shoots the block completely outward along a frictionless groove in the surface of the turntable.
A cold aluminium soft drink can by a capacity of 354 ml is filled to the brim with methanol at a temp of 4.0 degrees Celsius and is then allowed to reach the ambient temperature of 35.4degrees Celsius. (βAl= 75* 10 ^-6 Celsius β methanol= 1100 * ..
A projectile proton with a speed of v collides elastically with a target proton initially at rest. what is the speed of the projectile proton
An electric motor can accelerate a Ferris wheel of moment of inertia I = 18500kg·m2 from rest to 10.1rev/min in 12.0s. When the motor is turned off, friction causes the wheel to slow down from 10.1 to 8.1 rev/min in 10.0s.
During a rainstorm, 0.1 m of rain falls. If your roof has an area of 100 m2, What is the volume of water that fell on your roof
A 67kg man's arm, including the hand, can be modeled as a 70cm -long uniform cylinder with a mass of 3.5kg. by how much does he raise his center of gravity
A microwave oven is powered by an electron tube called a magnetron, which generates electromagnetic waves of frequency 3.46 GHz. determine the speed of the microwaves
An earth satellite moves in a circular orbit with an orbital speed of 5900m/s. Find the time of one revolution of the satellite
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