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Chapter 8 Ex. 59 sun star earth Distance to Alpha Centauri is 4.44 Ly where 1...
Alpha Centauri A and B are Sun-like stars, and together they form the binary star Alpha...
Alpha Centauri A and B are Sun-like stars, and together they form the binary star Alpha Centauri AB. Alpha Centauri A has 1.1 times the mass of the Sun, while Alpha Centauri B has 0.907 times the Sun’s mass. (Sun’s mass is 1.989 × 1030 kg.) The pair orbit about a common centre with an orbital period of 79.91 years. Their elliptical orbit is eccentric, so that the distance between A and B varies, but if we assume it is...
Alpha Centauri, the binary star closest to our solar system, is about 4.0 ly away. If...
Alpha Centauri, the binary star closest to our solar system, is about 4.0 ly away. If a spaceship traveled this distance with a constant speed of 0.85c relative to Earth, how much time would elapse (a) on a clock on the spaceship? Ans in Years
The nearest star to Earth besides the Sun is Proxima Centauri, which is a distance of...
The nearest star to Earth besides the Sun is Proxima Centauri, which is a distance of approximately 4 light years away. A planet that may be able to sustain liquid water on its surface was discovered in 2016 orbiting Proxima Centauri. According to observers on Earth, a spaceship that travels at 0.9c should be able to reach the planet in 3.6 years. How long would the trip take according to astronauts on board the spaceship?
1. Alpha Centauri is the closest star system to our Solar System at a distance of...
1. Alpha Centauri is the closest star system to our Solar System at a distance of 4.37 light-years. The velocity of light is 3.00 x108 m/s and a light year is defined as the distance light travels in 1 year. Calculate the distance in kilo meters (km) from Alpha Centauri to our Solar System in Scientific Notation format with the correct number of significant figures.
I need question 6 5. Stellar Parallax and a Parsec (15 pts.) A star with l...
I need question 6
5. Stellar Parallax and a Parsec (15 pts.) A star with l arcsecond parallax angle (0) it is definedto be 1 parsec away. Let's calculate the value of a parsec. Examine the diagram below. When viewed from the two positions (3 months apart), the star's position shifts by the angle e. Sun Earth Star (a) What is the distance (a) in km? (b) The distance (b) can be derived from trigonometry, tan(6) -alb. What is the...
PLEASE ANSWER BOTH!!! Our best measurements from Earth indicate that the star system Alpha Centauri is 4.2 light-years away. Suppose some of our astronauts traveled there at a speed v 0.83c. Wha...
PLEASE ANSWER BOTH!!!
Our best measurements from Earth indicate that the star system Alpha Centauri is 4.2 light-years away. Suppose some of our astronauts traveled there at a speed v 0.83c. What would the astronauts measure as the distance to Alpha Centauri? O 2.8 light-years 9.1 light-years O 2.9 light-years O 2.3 light-years O 7.5 light-years If a proton with mass 1.67 x 10"27 kg moves in an accelerator such that its total energy is five times its rest energy...
If we scale the approximate size of the Sun (~1 billion meters) to fit onto a...
If we scale the approximate size of the Sun (~1 billion meters) to fit onto a DVD (about 100mm or 0.1m), how many DVDs would you have to connect as a chain to represent the distance to the nearest star? Use the fact that Alpha Centauri is about 10¹⁶ meters away from Earth. Hint: determine the scale factor which reduces the true size of the Sun to a DVD and apply it to the distance to Alpha Centauri. If you...
Consider a bright star in our night sky. Assume its distance from Earth is 31.7 light-years...
Consider a bright star in our night sky. Assume its distance from Earth is 31.7 light-years (ly) and its power output is 4.00 x 1028 W, about 100 times that of the Sun. (a) Find the intensity of the starlight at the Earth. 3.54e-8 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. nW/m² (b) Find the power of the starlight the Earth intercepts. One light-year is the distance traveled...
Consider a bright star in our night sky. Assume its distance from Earth is 89.1 light-years...
Consider a bright star in our night sky. Assume its distance from Earth is 89.1 light-years (ly) and its power output is 4.00 ✕ 1028 W, about 100 times that of the Sun. One light-year is the distance traveled by light through a vacuum in one year. (a) Find the intensity of the starlight at the Earth. Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. W/m2 (b) Find the...
1. Two cells that subdivide on Earth every 10.0s start from the Earth on a journey to the Sun (1....
These are the answers, please provide the work for the
calculation
1. Two cells that subdivide on Earth every 10.0s start from the Earth on a journey to the Sun (1.5 x 1011 m away) in a spacecraft moving at 0.850c. How many cells wil exist when the spacecraft crashes into the Sun? Earth time is 588s. Spacecraft time is 310s or 31 cycles of division. 2312.1x 10 cells at the end of the journey. 2. As a spacecraft moving...
The nearest star to Earth besides the Sun is Proxima Centauri, which is a distance of approximately 4 light years away. A planet that may be able to sustain liquid water on its surface was discovered in 2016 orbiting Proxima Centauri. According to observers on Earth, a spaceship that travels at 0.9c should be able to reach the planet in 3.6 years. How long would the trip take according to astronauts on board the spaceship?
I need question 6
5. Stellar Parallax and a Parsec (15 pts.) A star with l arcsecond parallax angle (0) it is definedto be 1 parsec away. Let's calculate the value of a parsec. Examine the diagram below. When viewed from the two positions (3 months apart), the star's position shifts by the angle e. Sun Earth Star (a) What is the distance (a) in km? (b) The distance (b) can be derived from trigonometry, tan(6) -alb. What is the...
PLEASE ANSWER BOTH!!!
Our best measurements from Earth indicate that the star system Alpha Centauri is 4.2 light-years away. Suppose some of our astronauts traveled there at a speed v 0.83c. What would the astronauts measure as the distance to Alpha Centauri? O 2.8 light-years 9.1 light-years O 2.9 light-years O 2.3 light-years O 7.5 light-years If a proton with mass 1.67 x 10"27 kg moves in an accelerator such that its total energy is five times its rest energy...
Consider a bright star in our night sky. Assume its distance from Earth is 31.7 light-years (ly) and its power output is 4.00 x 1028 W, about 100 times that of the Sun. (a) Find the intensity of the starlight at the Earth. 3.54e-8 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. nW/m² (b) Find the power of the starlight the Earth intercepts. One light-year is the distance traveled...
These are the answers, please provide the work for the
calculation
1. Two cells that subdivide on Earth every 10.0s start from the Earth on a journey to the Sun (1.5 x 1011 m away) in a spacecraft moving at 0.850c. How many cells wil exist when the spacecraft crashes into the Sun? Earth time is 588s. Spacecraft time is 310s or 31 cycles of division. 2312.1x 10 cells at the end of the journey. 2. As a spacecraft moving...
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