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Who Knows? Only Joseph Swan invented it. Who Knows? Only Joseph Swan invented it.

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17y ago

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When was sonar first used and by whom?

Sonar was first used during World War I by the British Royal Navy. It was used to detect submarines by emitting sound waves and analyzing the echoes that bounced back.


When is whom used in a sentence and when is who used in a sentence?

'Whom' is used when you are referring to the object of the verb. 'Who' is used when you are referring to the subject of the verb. 'Who is there?' 'Who broke that vase?' 'For whom is that parcel intended?' 'Whom did you see?'


Why was the building of the three gorges dam first proposed in 1919 and by whom?

Sun Yetsun proposed the building of the Three Gorges Dam.The propose to generate power.


Can whom function as the object of a preposition?

Yes, "whom" can be the object of a preposition (for whom, with whom, of whom, etc.).


When to used who and whom?

"Who" is used as the subject of a sentence, while "whom" is used as the object. Use "who" when referring to the subject of a sentence (e.g., "Who is going to the party?"), and "whom" when referring to the object (e.g., "To whom did you give the gift?").


How is wind power being used by whom how many where?

Look up Wikipedia entry for 'Wind Power', section 5 of this article 'Utilisation of Wind Power' has detailed tables showing which countries have wind energy and quantities


Whom is the first country nuclear power?

US


Can you give someone a sentence with the word whom?

To whom it may concern Who is a subject pronoun; it is used as the subject of a verb. Whom is an object pronoun. If you find you can replace who/whom with he, she, or they, who is correct. If you find you've replaced who/whom with him, her, or them, then whom is correct.


Is whom a preposition?

No. Whom is the objective form of the pronoun "who." It is not used as a preposition.


Is whom singular or plural?

"Whom" is singular, used to refer to an individual.


When do you use whom or who in a sentence?

you use who as the subject and whom as the object.


Whom or what?

What is a pronoun used for impersonal things eg ideas or objects as in "See what I mean" or "At whatshould I aim?" or "You did what? " Whom is a personal pronoun used to represent people as in "For whom the bell tolls" or "To whom does this book belong?" Note that whom is the object case of who (and normally follows the verb) as in "Who did what to whom?" or "He chose whom he wanted."