The uncertainty in a is 8% and the uncertainty in t is 4% the uncertainty in the speed

Rewrite the passage to improve expression.

Usatestprep 1) how might an article with the same information as this passage be used for a different purpose by a different author? a) the author of the new article might be celebrating the great variety and richness of the english language. b) the author of the new article might be demonstrating how travel affects the integration of new words into a language. c) the author of the new article might be trying to educate readers about how many foreign words are in the english language. d) the author of the new article might be arguing that the english language is being corrupted by the influence of foreign languages. reactivate 2) from steal this book, by abbie hoffman pay phones you can make a local 10 cent call for 2 cents by spitting on the pennies and dropping them in the nickel slot. as soon as they are about to hit the trigger mechanism, bang the coin-return button. another way is to spin the pennies counter-clockwise into the nickel slot. hold the penny in the slot with your finger and snap it spinning with a key or other flat object. both systems take a certain knack, but once you've perfected the technique, you'll always have it in your survival kit. if two cents is too much, how about a call for 1 penny? cut a 1/4 strip off the telephone book cover. insert the cardboard strip into the dime slot as far as it will go. drop a penny in the nickel slot until it catches in the mechanism (spinning will ). then slowly pull the strip out until you hear the dial tone. in the first paragraph of "steal this book," the term "technique" can best be defined as a) style of clothing b) necessary routine c) emotional control d) method of movement 3) which word or phrase from this article would a reader most likely be able to define without knowing the language from which it derived? a) parka b) regatta c) flamenco d) bon chance 4) which of these is true about the phrase bon chance? a) it means “good luck.” b) it means “boat race.” c) it comes from germany. d) it comes from england. 5) from steal this book, by abbie hoffman pay phones you can make a local 10 cent call for 2 cents by spitting on the pennies and dropping them in the nickel slot. as soon as they are about to hit the trigger mechanism, bang the coin-return button. another way is to spin the pennies counter-clockwise into the nickel slot. hold the penny in the slot with your finger and snap it spinning with a key or other flat object. both systems take a certain knack, but once you've perfected the technique, you'll always have it in your survival kit. if two cents is too much, how about a call for 1 penny? cut a 1/4 strip off the telephone book cover. insert the cardboard strip into the dime slot as far as it will go. drop a penny in the nickel slot until it catches in the mechanism (spinning will ). then slowly pull the strip out until you hear the dial tone. the tricks discussed in this passage from steal this book would not be of any if a) you have no dimes, only pennies. b) you have no pennies, only quarters. c) you have only two pennies. d) you have only one penny. 6)

read this excerpt from president john f. kennedy’s inaugural address on january 20, 1961: in the long history of the world, only a few generations have been granted the role of defending freedom in its hour of maximum danger. i do not shrink from this responsibility—i welcome it. i do not believe that any of us would exchange places with any other people or any other generation. the energy, the faith, the devotion which we bring to this endeavor will light our country and all who serve it—and the glow from that fire can truly light the world. and so, my fellow americans: ask not what your country can do for you—ask what you can do for your country. my fellow citizens of the world: ask not what america will do for you, but what together we can do for the freedom of man. based on the excerpt, what is the central idea of this speech? a. to cultivate a sense of well-being among the american people b. to motivate people everywhere to uphold the freedom of humankind c. to motivate americans to strive for the development of their nation d. to foster a feeling of happiness and unity across people and nations