French Physicist Leon Foucault introduced his pendulum in 1851.
By that time, it was generally accepted that the Earth rotates, but
Foucault's pendulum was the first simple demonstration that made
the Earth's <u>rotation</u> easy to prove.
<span>chemical potential energy
</span>
Swinging needs to be the first skill mastered
The answer would be 49. Check the attach file for solution.
Answer:
3
Explanation:
the answer is number three