Wednesday

July 23, 2014

July 23, 2014

Posted by **Sethi** on Friday, April 27, 2007 at 12:44pm.

Since the wavelength shift is to shorter wavelengths (from 400.2 in the lab to 400.0, the star is moving toward observer (Earth).

The speed of approach along the line of sight, V, is given by

(400.2 - 400.0)/400.0 = 0.2/400 = V/c

Solve for V.

**Related Questions**

physics - The yellow line emitted by a helium discharge tube in the laboratory ...

Physics-Astronomy - A high-velocity star HVS 1 is moving at 600 km/s, 0.2% speed...

Science - In general, the narrower the spectral line of a star A.the hotter the ...

chemistry - Atomic hydrogen produces well-known series of spectral lines in ...

Astronomy - Another star cluster ("star cluster 2") lies 7.4 Mega-parsecs from ...

Science - In general, the narrower the spectral line of a star A.the hotter the ...

geometry - Suppose line PQ has endpoints P(2,3) and Q(8,-9). Find the ...

Astrophysics - Star Power and Temperature Star A and Star B Consider two stars ...

physics - A line of charge with a uniform density of 36.3 nC/m lies along the ...

math - Let P be the point (p,q) and L the line y = m x + b. It is not necessary...