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The strong nuclear force holds most ordinary matter together because it confines quarks into hadron particles such as the proton and neutron. Cosmology is a branch of astronomy that involves the origin and evolution of the universe, from the Big Bang to today and on into the future.
Explanation:
The strong nuclear force is responsible that protons in the nucleus of the atoms do not repeal each other.
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In fact, any relative motion between the two will cause a Doppler shift/ effect in the frequency observed. ... If stars and galaxies are travelling away from us, the apparent frequency of the light they emit decreases and their colour will move towards the red end of the spectrum.
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<em>When it reaches the Earth, some is reflected back to space by clouds, some is absorbed by the atmosphere, and some is absorbed at the </em><u><em>Earth's surface.</em></u><em> However, since the Earth is much cooler than the Sun, its radiating energy is much weaker infrared energy.</em>
Explanation:
The firing on Fort Sumter on April 12, 1861, was the first armed conflict of the <u>Civil War.</u>
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The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground. This simple concept is complicated by the curvature of the Earth's surface, which forces scale to vary across a map. Because of this variation, the concept of scale becomes meaningful in two distinct ways.
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