Answer:
v = 1.5 m/s
Explanation:
Given that,
Distance covered by a person, d = 105 m
Time taken, t = 70 s
We need to find the average speed of the person. We know that the average speed is given by :

So, the average speed of the person is equal to 1.5 m/s.
Methane.
Water - H2O
Methane - CH4
Methane has 2 more hydrogens than water.
Positive ion with a radius smaller than the radius of the atom
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