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Jul 17, 2023 ... Before sharing sensitive information, make sure you're on a federal government site. ... The S1 heart sound is produced as the mitral and ... (a) In this chapter, “public information” means information that is written, produced, collected, ... sound recording, map, and drawing and a voice, data ... An Outdoor Sound Propagation Model in Concert with Geographic Information System Software ... sound pressure level predictions were produced by this model. The ... By using a sound level "map" and information on employee locations throughout the day, estimates of individual exposure levels can be developed. This ... Sound waves are created ... Soundwaves vibrate the air to send audio in through the outer ear to the ear drum, which vibrates to send sound information to the ... A heart murmur is a blowing, whooshing, or rasping sound heard during a heartbeat. The sound is caused ... information and services. Learn more about ... Students will use simple materials to create, visualize and feel sound waves, investigate vibration and its role in producing sound, and make their own ... Sound can make matter vibrate, and vibrating matter can make sound. ... information from experiences or gather information from provided sources to answer ... However, the audio information that surrounds us would cause some problems, such as sounds interfering with each other and listener's fatigue caused by long- ... ... produced in aggressive contexts, whereas high-frequency tonal sounds are produced in fearful/appeasem …