If the universe ends, what would be at the edges to mark the boundary?
The Universe won't have a boundary.
In theory, if the universe is infinite, it would be closed, like the inside of a ball, meaning that there wouldn't be a boundary and you would eventually end up back where you started.
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The concept of the universe having edges or boundaries is not well-defined in current scientific understanding. The universe is generally considered to be infinite and expanding, meaning there are no physical edges or boundaries.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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- The mass of the moon is 7.36×1022kg and its distance to the Earth is 3.84×108m. What is the gravitational force of the moon on the earth? The moon's force is what percent of the sun's force?
- Are humans exposed to cosmic background radiation?
- What is strong fundamental force?

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