Pulse broadening: Assume that the slab waveguide core index, ni, and the outer (cladding) index, n2, DO NOT depend on light frequency/wavelength. Qualitatively explain (i. e., words and/or illustrative equation are fine) how/why a short pulse of light traveling in a "single" spatial waveguide mode can broaden as it travels from one end of the waveguide to the other end. (Note, this case is due to intra-modal dispersion.)

What is the significance of the novel's title? what is the "sweet hereafter"? a). a place you go after a tragedy takes your life b). a beautiful place the dead go, like heaven c). into the sunset, an ending that is not defined d). a dark sad place the dead go before rebirth

Read the passage first of all if someone says your dream is impossible, they’re wrong. you can’t prove that something is impossible-all you know is that[it] hasn’t been done yet. people said no one could scale mount everest but in 1953, sir edmund hilary and tenzing norway gazed down upon the world from it’s summit. people said that man could not fly, but in 1903, orville and wilbur wright made the first sustained powered flight in a heavier-than-air machine. people said, “okay, we admit that someone could climb mount everest, and we admit that man has learned to fly, but no one will ever, ever walk on the face of the moon.” if we can send three men a quarter of a million miles away and bring them home safely, is there any great task we cannot accomplish? which identifies the textual evidence that best supports the claim: the authors purpose is to persuade? a: the author shares historical information about the wright brothers. b: the author states that men have walked the moon. c: the author states that others who think your dreams are impossible are wrong. d: the author wants to know what tasks we cannot accomplish.

How can you avoid the problem of groupthink? a. by choosing a group leader to direct the group b. by composing the team of only like-minded individuals c. by encouraging all members to voice their opinions d. by keeping quiet when you disagree with another group member's opinion