An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
When a current of 15.0 A flows for 30 seconds, a total charge of 450 Coulombs is delivered. This amount of charge corresponds to approximately 2.81 x 10^21 electrons. Thus, about 2.81 billion billion electrons flow through the device in that time period.
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In the excerpt from 'Things Fall Apart' by Chinua Achebe, we can analyze the use of time and place deixis, which are linguistic elements that anchor the story in a particular temporal and spatial context.
Time Deixis :
"As a young man of eighteen" - This phrase provides a temporal reference indicating the age of Okonkwo during the event of defeating Amalinze the Cat. It situates the event in the past, relative to the current timeline of the story.
"For seven years was unbeaten" - This temporal reference refers to the period during which Amalinze the Cat remained undefeated, framing the significance and timing of Okonkwo's victory.
"Since the founder of their town engaged a spirit of the wild for seven days and seven nights" - This adds a historical temporal context by comparing Okonkwo's achievement to a past event, emphasizing its rarity and importance.
Place Deixis :
"Throughout the nine villages and even beyond" - This spatial reference highlights the widespread fame of Okonkwo, illustrating the geographical extent of his reputation.
"From Umuofia to Mbaino" - These are specific locations that indicate the area within which Amalinze the Cat's fame and victories were recognized, anchoring the story in a particular setting and community.
Understanding these deictic elements helps readers grasp the cultural and historical context of the narrative, showing the significance of Okonkwo's achievements both in his local community and beyond.
