What creates a weak or strong force?
Nova AdamsGravity, for examples, the gravity on moon is less than the earth's gravity and that's why astronaut can jump higher and have less weight on moon than on earth.
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Owen AtkinsonThe weak force is created by the exchange of W and Z bosons, while the strong force is created by the exchange of gluons.
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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.
- Approximately, how many nebulae are there in the universe?
- How can astronomers tell the universe is expanding?
- How is Hubble's Constant used?
- Knowing that the Earth's diameter is about "3 2/3" times the diameter of the moon, what is the angular diameter of the Earth as seen by an observer on the moon?
- What are the 5 closest stars to Earth? What are their distances in light years?
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