The diameter of our solar system (depending on how you define "solar system") is about 8,980,000,000,000 kilometers. the distance from our solar system to the nearest star, proxima centauri, is about 39,900,000,000,000,000 kilometers. a light-year is the distance light travels in one year, and it is equal to about 9,460,000,000,000 kilometers.
a) write each of these numbers in scientific notation. explain how you got your answers, and explain why you know that your method works.
b) you’d like to both know the end-to-end distance within the solar system and the distance to proxima centauri in light-years. using your scientific notation numbers, convert these distances. what is the ratio of the solar system’s length to the proxima centauri distance?
c) light travels at 300,000 kilometers per second. write this rate in scientific notation. when proxima centauri sends out light at that speed, how long does it take to reach our solar system? can you convert to minutes, hours, days, or years? does your answer in years correspond to the distance in light-years from our solar system to proxima centauri? why or why not?
Answers: 3
Physics, 21.06.2019 16:00, hermesrobles
In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?
Answers: 1
Physics, 21.06.2019 21:00, kaykaystark5528
Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?
Answers: 3
The diameter of our solar system (depending on how you define "solar system") is about 8,980,000,000...
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