Re: Why gravitional acceleration is measured in unit/sec�?

Martin wrote:

Raqueeb Hassan wrote:

Hello there!

I was reading about seti and it's problem regarding doppler shift.
Now, ... sorry to be awkward, I din't get why the unit measured as
something cm or ft/sec� ... why this second as (square), please?

(And SI units are much easier than the antique imperial units. There are no 'fiddle factors' required for the units when making calculations.)

And less chance for errors.

Now for the Dopler shift:

With present theories, a radio (or other electromagnetic) signal transmitted between two objects speeding apart at constant velocity produces a constant frequency shift on that radio signal. If the two objects are ACCELERATING apart from (or towards) each other, then the dopler shift steadily increases causing a continuously increasing frequency shift. This will occur between orbiting objects for example.

Hence, the m/s^2 units (acceleration) for the dopler shift compensation.

Mmmm, a few beers and a physics book/ encyclopaedia might help also!

Or this www site
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
which is a very good reference for those that need a quick refresher or much greater detail. Well linked between descriptions to related details or theories.

Good luck,
Martin

Robin