How is ozone formed?
2 answers:
Answer:
The Ozone is produced naturally when solar radiation collide with oxygen molecules .
The solar radiation is high energy, as a result of the collision, oxygen molecules are separated in atoms, this process is known as Photolysis.
After the separation process, oxygen atoms are freed and continuously colliding one another, so here they form molecules.
The major part of the Ozone in the atmosphere is formed over the equatorial zone, because there is the most intense solar energy radiation.
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Answer:
D) 11 m/s
Explanation:
We have to calculate the velocity of the hot dog with respect to the observer still outside the train. This velocity will be given by:
where
is the velocity of the train (towards right)
is the velocity of the man (towards right)
is the velocity of the hot-dog (towards left, so we put a negative sign)
By replacing the numbers into the equation, we find
and the positive sign means the velocity is toward right.