Speed of sound = 340 m/s
Time taken for sound to reach observer = 3.2 seconds
Height = speed x time
= 340 x 3.2
= 1,088 meters
What do all atoms of the same element have in common?
А. atomic mass
B. mass number
C. number of neutrons
<u>D. atomic number</u>
low density, malleable, easy to form into shapes, not very chem reactive


Explanation:
Snell's law (also known as Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.