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29.1. Spread of sound.

Check the correct answer!

Where does sound cannot spread?
Sound nowadays.
The spread of sound.

Solve tasks to find hidden Geo point coordinates

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