The gravitational field is equivalent to:

a. the inertial mass.
c. a clock running slowly.
b. an event horizon.
d. an accelerated frame of reference.


D

Physics & Space Science

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____________________ made very accurate observations of the positions and movements of the planets that were later used to help develop the Rudolphine Tables

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Is the cosmological redshift really a velocity of a given galaxy?

What will be an ideal response?

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The gain in speed each second for a freely-falling object is about

A) 0 m/s. B) 5 m/s. C) 10 m/s. D) 20 m/s. E) depends on the initial speed.

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