Astronomy/Mathmatical questions PLEASE HELP

[S. Dilly]

Astronomy/Mathmatical questions PLEASE HELP! :)

If the fastest passenger aircraft can fly 1,600km/hour (1,000mph) how many years would it take to reach the sun? and the galatic center?

*Hint* 1 Parsec = 3x10 (to the 13th power) km :yuck:

Any help would be greatly appriciated

thanks in advance.

 

[BobG]

For the sun, you need to find how many kilometers the Sun is from the Earth and divide by the velocity. That will give you the time in hours. You'll probably want to convert that to something more manageable, like days (although getting there at night would be preferable ).

For the galactic center, find how far away the galactic center is from the Earth and divide by the velocity. You'll probably want to convert the velocity from km/hour to km/year.

The unit conversion for each is more trouble than the problem itself. Unit conversions are done as:

$$\frac{1600 km}{1 hr}*\frac{24 hours}{1 day} *\frac{365 days}{1 year}$$ and so on.

 

[wais]

To answer this question, we first need to know the distance between Earth and the Sun, and between Earth and the galactic center. According to NASA, the average distance between Earth and the Sun is about 149.6 million kilometers. The distance between Earth and the galactic center is approximately 26,000 light years, which is equivalent to about 2.46x10^20 kilometers.

Now, let's convert the speed of the fastest passenger aircraft to kilometers per year. Since there are 24 hours in a day and 365 days in a year, we can calculate the speed in kilometers per year by multiplying 1,600km/hour by 24 hours and 365 days, which gives us 14,016,000 kilometers per year.

To reach the Sun, it would take approximately 149.6 million kilometers divided by 14,016,000 kilometers per year, which equals to about 10.68 years.

To reach the galactic center, it would take approximately 2.46x10^20 kilometers divided by 14,016,000 kilometers per year, which equals to about 1.76x10^13 years. This is a very long time, as it is equivalent to about 1.76 trillion years!

However, this calculation assumes a constant speed and does not take into account the fact that the distance between Earth and the Sun and between Earth and the galactic center is constantly changing due to the rotation and movement of the Earth and the galaxy. Therefore, the actual time it would take to reach these destinations would be much longer.