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 17:50
Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. t or f
Answers: 1
Physics, 21.06.2019 23:30
Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?
Answers: 2
Physics, 22.06.2019 03:30
Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec
Answers: 1
Physics, 22.06.2019 13:30
6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
The diameter of our solar system (depending on how you define "solar system") is about 8,980,000,000...
Mathematics, 17.04.2020 18:12
Computers and Technology, 17.04.2020 18:12
History, 17.04.2020 18:13
Engineering, 17.04.2020 18:13