|Sep30-10, 07:48 PM||#1|
Suppose you wanted to reach Alpha Centauri in
a. How fast would you have to go, in km/hr3
b. How many times faster is the speed you found in (a) than
the speeds ofour fastest current spacecraft (around
|Sep30-10, 08:08 PM||#2|
How many km are in a light year?
Multiply and you'll get the distance to A.Centauri in km.
100 years is how many hours?
Speed (in km/hr) to A.Centauri = distance (in km) / time (in hours)
Speed is distance divided by time.
You have a speed above, and this comparson speed. Pretty straightforward to divide one by the other.
Why do you need us?
|Oct1-10, 03:17 AM||#3|
Even easier. Take the distance to Alpha Centauri - 4.36 light years - and divide by 100 years. That's the fraction of lightspeed you want. Then multiply by the speed of light per hour. Since light moves at 299792458 m/s, by definition, I'll let you work out km/h...
|Similar Threads for: Alpha Centauri|
|Alpha Centauri||General Astronomy||21|
|Alpha Centauri lottery||Special & General Relativity||9|
|Planets around Alpha Centauri||General Astronomy||10|
|Can we please look for 'New Earth' at Alpha Centauri?||General Astronomy||3|
|Going to Alpha Centauri||Computing & Technology||17|