An increase in the observed wavelength of a star indicates which of the following?
a. the star is approaching earth
b. the star is receding from earth
c. the star is not moving relative to earth
d. the star is expanding

Part 1: what is the difference between n and m? part 2: explain your answer for part 1.ask for details follow report by tanairymaldonad 5 days agoyour answer (quit)leonelclara32 ambitiousadd your answerleonelclara32rank: ambitious487/5000/5my challengesanswer 25 history questions in 48 hours to collect 400 points0/251d : 23hanswer 5 questions from any subject in 48 hours to collect 50 points5/5donetry it again! you may attempt only one challenge at a time. challenges to completeanswer 10 questions from any subject in 48 hours to collect 100 points0/102d : 00hstartyou may attempt only one challenge at a time. answer 25 questions from any subject in 48 hours to collect 400 points0/252d : 00hstartyou may attempt only one challenge at a time. answer 5 english questions in 48 hours to collect 50 points0/52d : 00hstartyou may attempt only one challenge at a time. answer 10 english questions in 48 hours to collect 100 points0/102d : 00hstartyou may attempt only one challenge at a time. answer 25 english questions in 48 hours to collect 400 points0/252d : 00hstartyou may attempt only one challenge at a time. answer 5 mathematics questions in 48 hours to collect 50 points0/52d : 00hstartyou may attempt only one challenge at a time. answer 10 mathematics questions in 48 hours to collect 100 points0/102d : 00hstartyou may attempt only one challenge at a time. answer 25 mathematics questions in 48 hours to collect 400 points0/252d : 00hstartyou may attempt only one challenge at a time. answer 5 social studies questions in 48 hours to collect 50 points0/52d : 00hstartyou may attempt only one challenge at a time. answer 10 social studies questions in 48 hours to collect 100 points0/102d : 00hstartyou may attempt only one challenge at a time. answer 25 social studies questions in 48 hours to collect 400 points0/252d : 00hstartyou may attempt only one challenge at a time. answer 5 history questions in 48 hours to collect 50 points0/52d : 00hstartyou may attempt only one challenge at a time. answer 10 history questions in 48 hours to collect 100 points0/102d : 00hstartyou may attempt only one challenge at a time. what do you need to know?

Aschedule is identical to a timeline.

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