Vectors are often represented by arrows whose length is proportional to the magnitude of the vector. The arrowhead points to the direction the vector is acting. You'll have to decide if such an arrow fits your definition of a line.
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>> Burger vector and dislocation line both not lie in single active slip plane in sessile dislocation.
False. * * * * * No, it is true. It is false if the line is a vector but not otherwise.
a vector is a line with direction and distance. there is no answer to your question. the dot is the angular relationship between two vectors.
HelloAnswer to your QuestionSuppose we have to subtract vector B from the vector A.We can write it ARITHMETICALLY asA-B= A+(-B)Now we can determine the resultant of A and negative vector (-B) by usual adition of vectors method.Hence, according to fig. draw the representative line PQ of first vector A. Now draw the representative line Qr of the vectore B from the head of vector A in opposite direction . Join P to R, then PR represents the resultant vector C, i.e.,C = A-B----------------------------------------------------------------------------------------------------This is an example for subtraction of vector.By the ways if you want any other details from my side you can talk to me on my live id Dove_786@live.com.THANKS,Nawal Fatima.Pakistan..----------------------------------------------------------------------------------------HelloAnswer to your QuestionSuppose we have to subtract vector B from the vector A.We can write it ARITHMETICALLY asA-B= A+(-B)Now we can determine the resultant of A and negative vector (-B) by usual adition of vectors method.Hence, according to fig. draw the representative line PQ of first vector A. Now draw the representative line Qr of the vectore B from the head of vector A in opposite direction . Join P to R, then PR represents the resultant vector C, i.e.,C = A-B----------------------------------------------------------------------------------------------------This is an example for subtraction of vector.By the ways if you want any other details from my side you can talk to me on my live id Dove_786@live.com.THANKS,Nawal Fatima.Pakistan..----------------------------------------------------------------------------------------
If the "line" has a direction, it is a vector. Algebraic "lines" have no end nor beginning and so cannot "go" down nor up.