How did the Copernican model explain the apparent retrograde motion of the planets?

What will be an ideal response?


The model showed that apparent retrograde motion occurs as Earth passes by another planet in its orbit of the Sun.

Physics & Space Science

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The structural region of Earth that is a viscous liquid is the

a. mantle. b. outer core. c. inner core. d. lithosphere.

Physics & Space Science

The momentum of an object never changes

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

A whitish sky is evidence that the atmosphere contains

A) predominantly small particles. B) predominantly large particles. C) a mixture of particle sizes. D) water vapor. E) pollutants.

Physics & Space Science

According to present understanding, a nova is caused by

A) hydrogen fusion on the surface of a white dwarf. B) carbon fusion in the core of a white dwarf. C) hydrogen fusion on the surface of a neutron star. D) a white dwarf that gains enough mass to exceed the 1.4-solar-mass limit.

Physics & Space Science