Answer:
<h2>4 m/s</h2>
Explanation:
The speed of the ball can be found by using the formula

p is the momentum
m is the mass
From the question we have

We have the final answer as
<h3>4 m/s</h3>
Hope this helps you
Answer: Do you mean NaOH? because NaO4 does not exist
C2H2O4 + 2NaOH → Na2C2O4 + 2H2O
Explanation:
Compound or a simple element.
For example O2 is a chemical formula and represents the element oxigen, because it exists as a diatomic molecule in the air.
NaCl is a chemical formula and represents sodium chloride
CH4 is a chemical formula and represents methane.
Exert force upward.
Like when you pick something up from the floor, or walk up the stairs.
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