An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
The type of context clue used in the first sentence is Definition . The word 'meticulous' is directly defined in the sentence as 'careful and precise.'
Correct Meaning: B. Detailed
The type of context clue used is Antonym . The word 'tepid' is explained as 'not hot,' showing a contrast.
Correct Meaning: C. Lukewarm
The type of context clue used here is Antonym . The word 'ecstatic' is contrasted with 'disappointed,' showing opposites.
Correct Meaning: C. Happy
The type of context clue used here is Definition . The sentence explains what a 'botanist' is, specifically someone who studies plants.
Correct Meaning: B. Plant scientist
The type of context clue used here is Explanation . The sentence explains the feeling 'remorse' by linking it with the word 'guilt.'
Correct Meaning: C. Guilt
The type of context clue is Comparison . The word 'buoyant' is compared to 'like a feather,' which implies something that is light and floats.
Correct Meaning: B. Light
The type of context clue used here is Explanation . The word 'arduous' is described as 'long, steep, and exhausting.'
Correct Meaning: C. Difficult
The type of context clue used here is Explanation . The term 'stealthy' is explained by describing how movements were barely heard.
Correct Meaning: C. Quiet
The type of context clue used is Explanation . The word 'scorching' is used to explain why people stayed indoors to avoid the heat.
Correct Meaning: B. Hot
The type of context clue here is Explanation . The word 'jubilant' is explained by the action of celebrating with a big smile.
Correct Meaning: A. Happy
When a device delivers a current of 15.0 A for 30 seconds, it results in a total charge of 450 C. This charge corresponds to approximately 2.81 billion billion electrons. Therefore, about 2.81 x 10^21 electrons flow through the device in that time period.
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