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what velocity would a space craft need to be travelling at?
What velocity would a spacecraft need to be travelling for it radio tunes to 92.4Mhz to pick up 94.6Mhz?
3 Answers
- 1 decade agoFavorite Answer
It is called "blueshift"
For small velocities, the formula is
λ.observ/λ.actual = 1 + v/c
94.6/92.4 -1 = v/c
v = .0238c
If you want, you can plug in the relativistic formula contained in the "source" below. But, given this speed, it won't make any difference.
//
Source(s): http://en.wikipedia.org/wiki/Redshift - arslanLv 71 decade ago
Velocity= (Observed wavelength/rest wavelength-1) x c
velocity= (94.6/92.4-1) x 300,000
velocity= 7,142.85 km/s or 2.38% of the speed of light.
- 1 decade ago
It would be square root of the following expression hf/m.
Where ,
h plancks constant
f frequency
m mass of space craft.
Work it out.
