Answer:

Explanation:

Cross multiply


cross multiply

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The answer is A. A positive particle inside the nucleus
<span>Spring tides occur twice a month because the Sun and Moon are on same side of Earth and also when both are opposite side of of Earth.</span>
Answer:

Explanation:
Since there's no external force beside gravity acting on the rod, we can use the law of energy conservation to calculate for the speed of rod center of gravity before hitting the surface.
Also as the rod is uniform and this, its center of gravity is at distance h/2 from the surface.



