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29.2. Spread of sound.

Check the correct answer!

Does sound in summer spreads faster in air than in winter?
Sound nowadays.
The spread of sound.

Solve tasks to find hidden Geo point coordinates

  1. Physics: Spread of sound.
  2. Algebra: Fraction amplification and abbreviation.
  3. Geometry: Squar, properties and signs.
  4. Geometry: Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
  5. Algebra: Square trinomial roots
  6. Algebra: Fractions main property
  7. Algebra: Fraction addition and subtraction.
  8. Geometry: Diameter, which is perpendicular to chord, properties.
  9. Chemistry: Gas volume calculations
  10. Algebra: Actual numbers.
  11. Chemistry: Substances physical properties and transformations.
  12. Physics: mass
  13. Geometry: The Pythagorean Theorem. The practical application of Pythagorean Theorem in everyday life.
  14. Physics: Light reflection and mirrors.
  15. Physics: Measurement.
  16. Algebra: Parabola.
  17. Algebra: Numerical approximation.
  18. Algebra: Moda
  19. Physics: Ultrasound, Infrasound and sound usage.
  20. Geometry: Right-angled triangle outlined circle lines center location.
  21. Algebra: Rational fraction expression.
  22. Geometry: Triangle median properties.
  23. Physics: Gravitation, friction and deformation.
  24. Algebra: Numerical approximation.
  25. Algebra: Median
  26. Chemistry: Periodic table of chemical elements and atomic structure.
  27. Algebra: Equation with unknown denominator.
  28. Algebra: Square root extraction
  29. Geometry: Rectangle (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formulas
  30. Chemistry: Air composition and usage(reactions).
  31. Geometry: Distance between parallel straight lines.
  32. Geometry: Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
  33. Algebra: Absolute and relative mistake of approximation
  34. Geometry: Curve angle value, center angle and indrawn angle.
  35. Physics: Archimedes law.
  36. Algebra: Relative frequency
  37. Algebra: Square trinomial distribution into multipliers
  38. Algebra: Formula y = k/x
  39. Geometry: Area of parallelogram, rhomb, triangle, right angled triangle and trapeze.
  40. Algebra: Albraic fraction.
  41. Geometry: Area of parallelogram, rhombus, triangle, right-angled triangle, trapeze.
  42. Chemistry: Atoms un ķīmiskie elementi.