Speed of sound vs altitude
[DOC File]Adiabatic lapse rate
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Consider the force on a displaced air parcel. Its pressure is the same as the rest of the air at that altitude because pressure adjusts at the speed of sound which is much faster than the vertical velocity of the air parcel’s displacement. However, the vertically displaced …
[DOC File]NASA
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In 1960, Capt. Joseph Kittinger parachuted from a helium balloon at an altitude of just over 102,000 feet (wearing a helmet and breathing apparatus). He reached an estimated speed of 614 mph (just below the speed of sound). Why do you think he was able to reach such a high speed at that altitude…
[DOC File]Chapter 2 Problems - UCCS
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Chapter 2 Problems. 1, 2, 3 = straightforward, intermediate, challenging. Section 2.1 Position, Velocity, and Speed. 1. The position of a pinewood derby car was observed at various times; the results are summarized in the following table.
[DOC File]Wave Worksheet
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Does sound travel faster at 30,000 ft above sea level or 10,000 feet above sea level? 10,000. This chart is measuring the speed of sound in what type of medium? Circle one. Solid Liquid Gas. Does the temperature increase or . decrease. as the altitude increases? What is the speed of sound in water (put your units!)? 1,482 m/s. Does sound travel ...
[DOC File]Longitudinal Waves
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The speed of sound is 340 ms-1. A plane flies horizontally at an altitude of 10,000 m and a speed of 400 ms-1. When an observer on the ground hears the sonic boom, what is the horizontal distance from the point on its path directly above the observer to the plane? From the figure,
[DOC File]PROPERTIES OF THE ATMOSPHERE (Text Chapter 2)
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Let a0 be the speed of sound at sea level in a standard atmosphere, i.e. 661.74 KTS. Then the speed of sound a at an altitude where the temperature ratio is θ is given by the equation. a = a0 √ θ. For example, if θ = 0.79374 at a given altitude, then the speed of sound at this altitude is . a = a0 √ θ = 661.74 √0.79374 = 589.56 KTS.
[DOC File]AC 61-107 - OPERATIONS OF AIRCRAFT AT ALTITUDES …
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h. MACH number is a decimal number (M) representing the true airspeed (TAS) relationship to the local speed of sound (e.g., TAS 75 percent (0.75 M) of the speed of sound where 100 percent of the speed of sound is represented as MACH 1 (1.0 M)). The local speed of sound …
[DOCX File]Embry–Riddle Aeronautical University
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ratio of TAS to the speed of sound at cruise altitude. M = TAS / a = TAS / (a. 0) Math Review: Linear vs. Non-Linear. and. Direct vs. Inverse. Functions. y = f(x) —a mapping from a domain x to a range y. Linear : y changes at a . constant rate with respect to x —results in a straight line plot. Non-linear:
[DOC File]MOTION PROBLEMS - Kinematics 10-03-95
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While jumping, a flea reaches a speed of 1 m/s. This should give him an altitude of 5 cm but it only reaches 3.5 cm due to air resistance. Using this height and his initial speed, calculate the actual acceleration of the flea during its upward flight. Assume constant acceleration. A helicopter is ascending vertically with a velocity of 6.00 m/s2.
[DOCX File]CABIN ALTITUDE vs. CABIN PRESSURE DIFFERENTIAL …
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CABIN ALTITUDE red message may appear and CABIN ALTITUDE aural warning may sound at 9,650 feet cabin altitude. OPERATIONAL PROCEDURE Flight planning must consider the fuel burn and range associated with flight at lower altitudes.
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