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17). If you were to live another 65 years and there was a starship ready to go right now, how fast would it have to be going for you to live long enough to get to the galactic center (30,000 l.y.)? How fast would you have to go to reach the Andromeda Galaxy (2.54 million I.y.)?

17). If you were to live another 65 years and there was a starship ready to go right now, how fast would it have to be going for you to live long enough to get to the galactic center (30,000 l.y.)? How fast would you have to go to reach the Andromeda Galaxy (2.54 million I.y.)?

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17 & 19 please. 
17). If you were to live another 65 years and there was a starship ready to go right now, how fast would it have to be going for you to live long enough to get to the galactic center (30,000 L.y.)? How fast would you have to go to reach the Andromeda Galaxy (2.54 million 1.y.)? 18). A friend tells you that we should ignore claims of climate change on Earth, because the scientists making such claims are simply relying on their authority as scientists (argument from authority) to support their claims. What are the problems with your friend's claim? This friend is far from alone... 19). To get a de Broglie wave that is visible to human eyes (size-wise, not visibility-wise, so A>0.1 mm), of an particle, what particle should it be and what is the greatest speed it can be moving? Table 33.2 may be helpful.
Transcribed Image Text:17). If you were to live another 65 years and there was a starship ready to go right now, how fast would it have to be going for you to live long enough to get to the galactic center (30,000 L.y.)? How fast would you have to go to reach the Andromeda Galaxy (2.54 million 1.y.)? 18). A friend tells you that we should ignore claims of climate change on Earth, because the scientists making such claims are simply relying on their authority as scientists (argument from authority) to support their claims. What are the problems with your friend's claim? This friend is far from alone... 19). To get a de Broglie wave that is visible to human eyes (size-wise, not visibility-wise, so A>0.1 mm), of an particle, what particle should it be and what is the greatest speed it can be moving? Table 33.2 may be helpful.
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