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In response to a stimulus, do skeletal muscle fibers always contract to 25% of their potential ability, always contract to 50% of their potential ability, always contract to 100% of their potential ability, or none of the above?
The reason for this is that contraction of skeletal muscles is governed by "All or None" principle. It supports that the degree of contraction doesn't depend on intensity of stimulus....
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What will happen if you travel in a straight line in our universe? Can you ever leave our universe?
This question is not easy to answer and there so many issues involved., First of all what does one mean by a moving in a straight line, as a...
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Current scientific models say the Universe is still expanding. Are there any theories to explain what the Universe is expanding into?
The universe is expanding at an increasing rate, the the three theories as to what is going to happen next are: "The Big Rip": The universe will expand to the...
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If the universe is expanding, what is it expanding into?
Technically physicists all over the world have been working to solve the mystery of origin of our Universe.Various models of theory of Big Bang have been developed over time....
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Does the expanding universe model mean that our Milky Way galaxy is at the center of the universe?
The expanding universe model describes universal inflation. Every spatial point in the universe is expanding simultaneously. No one thing is at the center of the universe. People often relate...
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What is it expanding into? Will it ever stop? Will we ever be able to go outside the zone it is expanding into?
The concept of the makeup of the universe is extremely confusing for most people. First of all, it is generally agreed that the universe is ball shaped. However! There is...
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If space isn't part of the Universe, what is the Universe expanding into?
It is a common misconception to think that there is something larger than the universe, and that the universe is expanding into it (perhaps to fill it at some point?)....
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Edwin Hubble discovered the universe was expanding by measuring the light of distant stars, and by showing that those distant stars were moving further away from the earth. If this is so, then why is the Andromeda Galaxy moving closer to us?
Andromeda is being pulled apart by the expanding universe. But the gravity between the Milky Way and Andromeda is strong enough to overcome this expansive force. Gravity is pretty...
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As the universe is expanding, is the solar system also expanding?
The problem of what happens to mass distributions in an expanding Universe has been studied carefully for an ideal case of spherical distribution of matter in a flat - matter...
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If the universe is an expanding sphere, what space is it expanding into?
For 3-D sphere, $d/(da)((4/3)pia^3)= 4pia^2$. I had proved this 40 years ago, for hypersphere, in a paper titled "The rate of change of hypervolume is hypersurface". I am aware that...
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