Definition of the speed of sound waves in the air . Methodological instructions for laboratory work No. 2 in the discipline "Acoustic probe" is a unique work created by a team of authors, which is not only a methodological manual, but also a fascinating immersion in the world of acoustics and sound physics. This book will become an indispensable assistant for students, teachers and anyone who is interested in the basics of acoustic research and wants to better understand the nature of sound waves. The focus of this work is the process of determining the speed of sound in the air, which is a key aspect in the study of acoustic phenomena. The authors offer the reader not only theoretical calculations, but also practical recommendations for conducting laboratory experiments. The reader will be able to get acquainted with techniques that will help him to conduct research on his own, as well as understand how various factors affect the speed of sound in various environments. This makes the book especially valuable for students of technical and natural science specialties, as well as for schoolchildren interested in physics. The book is addressed to a wide range of readers: from high school students preparing for exams to university students studying physics and acoustics. It will be useful for those who want to deepen their knowledge in the field of sound phenomena, as well as for those who are looking for practical skills for future professional activities in scientific or engineering fields. If you are passionate about physics, love experiments and want to learn more about how sound waves interact with the environment, this guide will be a real find for you. The topics raised in the book cover not only the basics of acoustics, but also more complex aspects, such as the effect of temperature, pressure and humidity on the speed of sound. The authors carefully explain how these parameters can change the results of experiments, which allows the reader not only to master the technique, but also to develop critical thinking and analytical skills. This makes the book relevant not only for the educational process, but also for scientific research in the field of physics. The style of the authors is characterized by accessibility and clarity of presentation, which makes it easy to assimilate even the most complex concepts. Each chapter contains practical assignments, examples, and illustrations that make the learning process more visual and engaging. This manual not only conveys knowledge, but also inspires the reader to further research and experiments in the field of acoustics. If you are looking for literature that will help you not only prepare for laboratory work, but also expand your horizons in the study of sound, "Determining the speed of sound waves in the air" will be your faithful companion. This book can be the basis for future research and discoveries, and will also serve as an excellent addition to your educational path. In conclusion, it is worth noting that “Determination of the speed of sound waves in the air” is not just methodological guidance, but a whole world of acoustic research, which is waiting to be discovered. Immerse yourself in the study of sound, discover its secrets and learn to apply the knowledge gained in practice. This book will be your reliable assistant on this fascinating journey!