Answer:
eight
Explanation:
it's atomic number is 8 which mean that an oxygen atom has eight protons in it's nucleus
C is incorrect because the atomic number and symbol are the only ones displayed.
I think it could be A but it is most likely C
Hope it helps!!
The answer is: [D]: "have rings and bands" .
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Answer:
Explanation:
Given
mass of climber
Distance between rock and cliff=48.6 m
mass of rock
let T be the tension in the rope
Thus ------1
where a is the acceleration of system
Also for Rock
------2
From 1 & 2 we can say that
g+a=19.303 a
g=18.303 a
Thus climber is decelerating with
time to cover 48.6 m
t=13.47 s