The masculine noun in the given options is O papel , as it corresponds with masculine articles. The other options represent feminine nouns. Understanding the gender of nouns is essential in Spanish grammar. ;
In 30 seconds, approximately 2.81 × 1 0 21 electrons flow through the device when a current of 15.0 A is delivered. This is calculated using the total charge and the charge of a single electron. The total charge of 450 C is divided by the charge of an electron, which is about 1.6 × 1 0 − 19 C .
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