Why is the tropical year shorter than the sidereal year?

What will be an ideal response?


Precession causes the axis to reach a solstice alignment slightly before an orbit completion.

Physics & Space Science

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The fast rotation of neutron stars is a consequence of the law of conservation of angular momentum.

Answer the following statement true (T) or false (F)

Physics & Space Science

As a white dwarf cools its radius will not change because

a. pressure due to nuclear reactions in a shell just below the surface keeps it from collapsing. b. pressure does not depend on temperature for a white dwarf because the electrons are degenerate. c. pressure does not depend on temperature because the white dwarf is too hot. d. pressure does not depend on temperature because the star has exhausted all its nuclear fuels. e. material accreting onto it from a companion maintains a constant radius.

Physics & Space Science

Length Contraction: How fast must a meter stick move, relative to the frame of the observer making the measurement, so its length will be measured to be 0.60 m?

A. 0.40c B. 0.60c C. 0.70c D. 0.80c E. 0.90c

Physics & Space Science

An F-type star would have a larger habitable zone that does our Sun

Indicate whether the statement is true or false

Physics & Space Science