Describe the distance and composition of the Alpha Centauri system

What will be an ideal response?


The Alpha Centauri system is composed of three stars. This system includes the closest star to Earth (other than the Sun). The closest star is called Proxima Centauri and has a parallax of 0.77 arc second which is 1.3 pc or 4.3 light-years.

Physics & Space Science

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Explain why it would be better to obtain stellar parallax for stars if we could observe from the planet Mars instead of the Earth

What will be an ideal response?

Physics & Space Science

A woman walks briskly at 2.0 m/s how much wile will it take her to walk one mile?

A. 8.3 min B. 13.4 min C. 21.7 min D. 30.0 Min

Physics & Space Science

A violin with string length 32 cm and string density 1.5 g/cm resonates with the first overtone from a 2.0-m long organ pipe with one end closed and the other end open. What is the tension in the string?

A) 1000 N B) 110 N C) 450 N D) 4100 N E) 56 N

Physics & Space Science

The resolving power of a telescope is affected by the property of light called

A. refraction. B. attenuation. C. diffraction. D. reflection. E. seeing.

Physics & Space Science