You answered your own question with "as the metal expands." The gap stays proportionally the same, because the whole piece of copper expands when it is heated. It isn't relevant that someone cut out a piece of it, because the copper is completely unaware of this. It expands because you heated it, causing its atoms to move apart. This expansion occurs everywhere in the copper, but obviously not in the gap (there's nothing there but air). You may be thinking something like, "Well then the copper must close the gap," but you have to remember that ALL of the copper expands. You get a bigger version of what you had before you heated it. Tight pipe and machinery fittings are accomplished using this method. Heat it to expand, cool it to shrink.
The letter at the bottom of the arc represents the position at which the basketball has the least potential energy. This is because potential energy is lowest at the lowest point of the arc due to the effect of gravity pulling the basketball down.
"D" on a steel penny typically refers to the Denver Mint, where the penny was minted. During World War II, steel pennies were produced due to a copper shortage.
The letter representing the position where the basketball has the greatest energy would be B, which is at the highest point of its trajectory. At this position, the basketball has maximum potential energy due to its height above the ground and minimum kinetic energy as it momentarily stops before falling back down.
The letter denoted by wavelength in physics is the Greek letter lambda, represented as λ.
The difference between the letter "g" and the letter "G" is that "g" is lowercase and "G" is uppercase. They represent the same sound but have different forms.
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segment circle
Explain the significance of letter of credit in international marketing?
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The letter is a capital U
Cu=copper
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In the symbol AB, the letter A represents the starting point or origin of the line segment.
Copper, bronze, alloys, nickel, silver, cobalt.
'CU' separated is 'C' & 'U' , which are Carbon and Uranium respectively. So 'CU' would possibly be a carbide of uranium . However, I think you mean 'Cu'. which is the initials for the Latin word 'Cuprum', which is in modern English 'Copper'. NB When writing chemical symbols be careful on the use of capital and lower case letters. Single letter symbols are ALWAYS a CAPITAL letter. Two letter symbols are written as , first letter is a capital letter and the second letter is small/lower case.
Cu is Copper!Cu - is the symbol for copper.
Oh, dude, that's like a brain teaser or something. So, like, the element that fits that description is copper (Cu). Its symbol starts with a different letter from the first one in its name. So, yeah, copper is the odd one out in that group.