Answer:
1. Nitrogen
2. Oxygen
3. Carbon dioxide
4. Water vapor
5. Ozone
Explanation:
The atmosphere composes of 78% nitrogen which occupies the largest percentage followed by oxygen which takes up 21%, Argon takes up 1% then other components such as water vapor occupy between 0-7% and ozone takes 0.0-0.01. Moreover, 0.01-0.1 is occupied by carbon dioxide. Therefore, the answers for 1-5 are as follows.
1. Nitrogen
2. Oxygen
3. Carbon dioxide
4. Water vapor
5. Ozone
<span>If your options are:
A.Both momentum and kinetic energy are vector quantities.
B.Momentum is a vector quantity and kinetic energy is a scalar quantity.
C.Kinetic energy is a vector quantity and momentum is a scalar quantity.
D.Both momentum and kinetic energy are scalar quantities.
</span>
The answer on the question given is letter B.<span>Momentum is a vector quantity and kinetic energy is a scalar quantity.</span>
This question wants a conversion
90km = 90000m
1hr = 3600 seconds
90000m/3600s= 900/36
= 25m/s
Answer:
The answer is B
Explanation:
Density of the element lead (Pb) is:

Density of the element Copper (Cu) is:

First we need o find the volume of both materials:


And the buoyant forces on elements are:


"Watch" . . . atmospheric conditions exist that could
produce tornados, but none have been seen yet.
"Warning" . . . tornados have formed and have been seen.