Given that the wavelength of an electromagnetic wave is 4THz what is its wavelength

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

Is the slightly humorous tone of kristof's essay inappropriate for a discussion of deliberately killing wild animals? why or why not?

Answer fast. read the excerpt below and answer the question. i will tell you the tale of my wanderings and of the “herculean” labors, as i may call them, which i endured only to find at last the oracle irrefutable. socrates’ use of the word “herculean” in this excerpt from the apology is an example of what literary device? allusion metaphor onomatopoeia simile