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The short-period mode is an oscillation with a period of only a few seconds that is usually heavily damped by the existence of lifting surfaces far from the aircraft’s center of gravity, such as a horizontal tail or canard. The time to damp the amplitude to one-half of its value is usually on the order of 1 second.
There is very little change in the trajectory over the time it takes for the oscillation to damp out. Generally this oscillation is high frequency (hence short period) and is damped over a period of a few seconds. A real-world example would involve a pilot selecting a new climb attitude, for example 5° nose up from the original attitude.
The separation of the mirrors is L and the clock ticks once each time the light pulse hits mirror A. In the frame in which the clock is at rest (see left part of the diagram), the light pulse traces out a path of length 2L and the time period between the ticks of the clock is equal to 2L divided by the speed of light c:
JPMorgan Chase, Bank of America and Citigroup reminded employees that they can take paid time off to vote in Tuesday's U.S. presidential election, while underscoring the need to work across ...
Early modern period – The chronological limits of this period are open to debate. It emerges from the Late Middle Ages (c. 1500), demarcated by historians as beginning with the fall of Constantinople in 1453, in forms such as the Italian Renaissance in the West, the Ming dynasty in the East, and the rise of the Aztecs in the New World.
Butte County Sheriff Kory Honea said the two boys, ages 5 and 6, are in "extremely critical condition" after sustaining gunshot wounds Wednesday.
Sam Leavitt threw for 275 yards and three touchdowns, Jordyn Tyson had 12 catches for 176 yards and two of the scores, and Arizona State held off No. 20 Kansas State 24-14 on Saturday night in the ...
When light hits small particles, the light scatters in all directions (Rayleigh scattering) as long as the particles are small compared to the wavelength (below 250 nm). Even if the light source is a laser, and thus is monochromatic and coherent, the scattering intensity fluctuates over time.