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Drop a ball and the surface of the Earth moves up to meet it?

Drop a ball and the surface of the Earth moves up to meet it? - Physics Forum

Drop a ball and the surface of the Earth moves up to meet it? - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


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  #1  
Old 04-01-2008, 03:06 AM
mitchgrav@hotmail.com
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Default Drop a ball and the surface of the Earth moves up to meet it?



The idea that gravity is equivalent to the ground coming up to meet a
falling object is clear evidence of the failure of Relativity. Only
the ball has gravity acceleration through space or weightless
acceleration.

The station does not accelerate through Earth's space to get closer to
the train. The train comes to the station period. It can be tested by
the clock. The station's clock will run fast or normal because it is
not moving. The train's clock which has accelerated though will run
slow by the Gamma factor of its speed. Compare clocks as the train
passes the station.

Mitch Raemsch Twice Nobel Laureate 2008

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  #2  
Old 04-01-2008, 04:51 PM
Paul Hovnanian P.E.
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Default Drop a ball and the surface of the Earth moves up to meet it?

greysky wrote:

But, as the train accelerates, it does pull the station (and the earth)
toward it a tiny bit. From the point of view of an observer on the moon,
the earth is accelerated ever so slightly and the station clock slows
down a tiny bit.


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  #3  
Old 04-01-2008, 08:45 PM
mitchgrav@hotmail.com
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Default Drop a ball and the surface of the Earth moves up to meet it?

On Apr 1, 8:51*am, "Paul Hovnanian P.E." <[Only registered users see links. ]> wrote:

How do you calculate the tensor for every point on an eliptical curve?

Its a alot of work isn't it?
Infinite calculation to get the whole orbit in fact.

Mitch Raemsch Twice Nobel Laureate 2008
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  #4  
Old 04-01-2008, 09:21 PM
Antares 531
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Default Drop a ball and the surface of the Earth moves up to meet it?

On Mon, 31 Mar 2008 22:31:42 -0700, "greysky" <[Only registered users see links. ]>
wrote:

Unless someone simultaneously drops another ball of the same mass and
elevation, from a point diametrically opposite on the earth.
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  #5  
Old 04-01-2008, 09:27 PM
Robert J. Kolker
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Default Drop a ball and the surface of the Earth moves up to meet it?

PD wrote:


Both fall around a common center of gravity.

Bob Kolker

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  #6  
Old 04-02-2008, 12:43 AM
Paul Hovnanian P.E.
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Default Drop a ball and the surface of the Earth moves up to meet it?

[Only registered users see links. ] wrote:

Calculate every other point and then interpolate. :-)


Well then, get to work. And don't come back until you're done.


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