Answer:
12s
Explanation:
the formula is
s = u×t + 0.5×a×t²
where:
s is the displacement of the object at this time (so it's equal to 0)
u is the initial speed
t is the time you have to find
a is the acceleration due to gravity





Heat is most closely related to THERMAL energy.
The raising and lifting the ball by kicking is a B) Scoop
Which two aspects of sound go together?
- <em>P</em><em>i</em><em>t</em><em>ch and frequency</em>
<u>Pitch</u><u> </u><u>and</u><u> </u><u>frequency</u><u> </u><u>are</u><u> </u><u>two</u><u> </u><u>aspects</u><u> </u><u>of</u><u> </u><u>sound</u><u> </u><u>that</u><u> </u><u>go</u><u> </u><u>together</u><u>.</u><u> </u><u>Pitch</u><u> </u><u>means</u><u> </u><u>Higness</u><u> </u><u>or</u><u> </u><u>Lowness</u><u> </u><u>of</u><u> </u><u>sound</u><u>.</u><u> </u><u>F</u><u>r</u><u>e</u><u>q</u><u>u</u><u>e</u><u>n</u><u>c</u><u>y</u><u> </u><u>is</u><u> </u><u>the measurement of the number of times that a repeated event occurs per unit of time.</u><u>.</u><u>.</u><u>~</u>
Answer:
L'ozone est produit à partir du dioxygène, composé de deux atomes d'oxygène(O2). Aux altitudes supérieures à 30 km, le rayonnement solaire possède encore une énergie suffisante pour casser une partie des molécules de dioxygène et libérer les atomes