Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
1 answer:
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Answer:
68.6 m/s
Explanation:
v = Speed of sound in air = 343 m/s
u = Speed of train
= Actual frequency
From the Doppler effect we have the observed frequency as
When the train is approaching
When the train is receeding
Dividing the above equations we have
The speed of the train is 68.6 m/s
Answer:
d) AN (article accession number)
Explanation:
APA format is commonly found in term papers, essays, and scientific papers. It consists of an in-text citation with a reference list to accompany it. The writer needs to cite the author and year of the work by putting them in parentheses separated by a comma (Author's name, year), for the references list the pattern is author, date, title, source. This format suffers small modifications depending on the kind of document you want to cite, for example, for a scholarly journal article te format is:
Author or authors (surname is followed by first initials). Year of publication of the article (in round brackets). Article title. Journal title (in italics). Volume of the journal (in italics). Issue number of the journal in round brackets (no italics). Page range of article. DOI.
An example is annexed as an image at the end.
<em>Therefore AN (article accession number), sometimes called a Document ID, is a unique number assigned by a particular database as an additional means of locating a specific article, this number is distinct and unrelated to a document’s DOI number, is NOT included in an APA citation for a scholarly journal article.</em>
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