The US wanted it for its great Port cities. Plus they wanted to gain California from Mexico so the British wouldn't claim it.
John Dalton was an English chemist who pioneered in the study of modern atomic theory while Joseph Lister was a surgeon who introduced the new principles of cleanliness. The impact of the scientific theory that Dalton introduced may be very molecular in level however that of Lister is very much applicable in day-to-day basis.
This line belongs to Act IV, scene iii of <em>Romeo and Ju.liet</em>.
In this scene, Ju.liet is about to drink the vial of potion that will make her appear dead. She knows that, after she does, she will be taken to the cript where all her dead relatives are buried. She worries about what will happen if the potion does not work. In these lines, she wonders what it would be like to be alive and wake up in the tomb. She thinks of the death and night that would surround her, as well as the bones of all her ancestors, and she is filled with fear at the prospect of this happening.
Answer:
The path difference between the two waves should be one-half of a wavelength.
Explanation:
For the destructive interference to form at point P the path difference between the two waves should be
= 
where n can be any integer starting from 0,1,2....
therefore we can say that
If the maximum destructive interference is to occur at point P, The path difference between the two waves should be one-half of a wavelength.
Answer:
American it impacts positive and Africa is negitive
