[Phys-L] test 3

[Ludwik Kowalski <kowalskil@mail.montclair.edu>]

Thank you Donald.

Please post these two questions for me:

Suppose our Sun is hit by a star of equal mass, traveling in the opposite direction. The two stars fuse mechanically and remain in rest  (in the frame of their center of mass). 

1) Will an ultra-sensitive seismometer, located on Earth, detect such gravitational disturbance? 

2) I think that the speed of the disturbance would be practically c, in the frame of the center of mass. Yes or NO ?

Ludwik Kowalski, Professor Emeritus 
Montclair State University, NJ

I do not know why I am not able to post it myself.

Ludwik
===================================================

On Apr 1, 2016, at 3:29 PM, Donald Polvani wrote:

> I received both tests.
>
> Don
> Dr. Donald G. Polvani
> Adjunct Faculty, Physics, Retired
> Anne Arundel Community College
> Arnold, MD 21012
>
>
> -----Original Message-----
> From: Phys-l [mailto:phys-l-bounces@www.phys-l.org] On Behalf Of Ludwik
> Kowalski
> Sent: Friday, April 1, 2016 2:59 PM
> To: phys-L new <phys-l@phys-l.org>
> Cc: Ludwik Kowalski <kowalskiL@montclair.edu>
> Subject: [Phys-L] test2
>
> test2
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