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rising age at marriage as well as increasing availability and use of effective contraceptive methods. Note that changes in population growth have not…353 kB (44 221 palabras) - 13:07 16 abr 2024- En Percy, John; Pasachoff, Jay, eds. Teaching and Learning Astronomy: Effective Strategies for Educators Worldwide. Cambridge University Press. p. 165…161 kB (18 796 palabras) - 02:37 17 mar 2024
Resultados de la Wikipedia en inglés.
- Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average or equilibrium) atmospheric pressure, caused by a sound…28 kB (3009 palabras) - 22:30 19 feb 2024
- water. The effective sound pressure is the root mean square of the instantaneous sound pressure over a given interval of time. Sound pressures are normally…74 kB (9894 palabras) - 18:22 31 mar 2024
- frequency and pressure in ordinary air, deviating slightly from ideal behavior. In colloquial speech, speed of sound refers to the speed of sound waves in…56 kB (7925 palabras) - 02:25 23 abr 2024
- received, per unit time Sound pressure level, measure of the effective pressure of a sound relative to a reference value Sound intensity level, measure…811 bytes (138 palabras) - 20:40 12 mar 2018
- A sound level meter (also called sound pressure level meter (SPL)) is used for acoustic measurements. It is commonly a hand-held instrument with a microphone…49 kB (6284 palabras) - 16:54 8 dic 2023
- Soundproofing (redirección desde Sound dampening)echoes and resonances that cause reverberation. Sound-absorbing material controls reverberant sound pressure levels within a cavity, enclosure or room. Synthetic…22 kB (2552 palabras) - 22:19 14 abr 2024
- senses changes in atmospheric pressure caused by acoustic sound waves and records them as a mechanical representation of the sound waves on a medium such as…50 kB (6317 palabras) - 21:05 7 abr 2024
- Particle velocity (redirección desde Sound velocity level)longitudinal wave of pressure as with sound, but it can also be a transverse wave as with the vibration of a taut string. When applied to a sound wave through…7 kB (1168 palabras) - 17:38 24 ago 2023
- Silencer (firearms) (redirección desde Sound suppressors)acoustic intensity of the muzzle report (sound of a gunshot) and jump, by modulating the speed and pressure of the propellant gas released from the muzzle…74 kB (8516 palabras) - 20:33 21 abr 2024
- EPNdB (redirección desde Effective perceived noise)100 PNdB sound lasting ten seconds. Direct comparison with A-weighted sound pressure level, which is used for many other environmental sound measurements…4 kB (547 palabras) - 00:48 29 ene 2024
- Wind instrument (sección Breath pressure)manual modifications of the effective length of the vibrating column of air. In the case of some wind instruments, sound is produced by blowing through…18 kB (2306 palabras) - 05:10 13 abr 2024
- Active noise control (redirección desde Sound canceling)headphones. Sound is a pressure wave, which consists of alternating periods of compression and rarefaction. A noise-cancellation speaker emits a sound wave with…10 kB (1337 palabras) - 06:41 10 mar 2024
- Hypertension (redirección desde High blood pressure)high blood pressure, is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. High blood pressure usually does…133 kB (14 370 palabras) - 17:36 25 abr 2024
- sound). The pressure at which this sound is first heard is the systolic blood pressure. The cuff pressure is further released until no sound can be heard…36 kB (4258 palabras) - 09:14 22 jul 2023
- electric potential when subjected to a pressure change, such as a sound wave. A hydrophone can detect airborne sounds, but will be insensitive because it…10 kB (1267 palabras) - 00:07 24 ene 2024
- Absorption (acoustics) (redirección desde Sound absorption)most sound, whereas dense, hard, impenetrable materials (such as metals) reflect most. How well a room absorbs sound is quantified by the effective absorption…10 kB (1134 palabras) - 21:25 29 ene 2024
- Water content (redirección desde Effective saturation)The normalized water content, Θ {\displaystyle \Theta } , (also called effective saturation or S e {\displaystyle S_{e}} ) is a dimensionless value defined…22 kB (2923 palabras) - 11:12 11 may 2023
- Acoustic transmission (redirección desde Sound transmission)Acoustic attenuation Architectural acoustics Attenuation coefficient Noise pollution Soundproofing Sound pressure Sound reflection Sound transmission class…4 kB (517 palabras) - 20:26 15 mar 2023
- Bernoulli's principle (redirección desde Bernoulli pressure)Bernoulli's principle is a key concept in fluid dynamics that relates pressure, speed and height. Bernoulli's principle states that an increase in the…74 kB (10 122 palabras) - 16:35 19 abr 2024
- acoustic device to reduce the loudness of the sound pressure created by the engine by acoustic quieting. Sound reduction techniques used in mufflers include:…8 kB (773 palabras) - 16:07 6 dic 2023
- an increase in their pore water pressures and consequently a decrease in shear strength, i.e. reduction in effective stress. Deposits most susceptible…30 kB (3637 palabras) - 00:29 2 abr 2024