____________________ can be used to determine the distance to a star when the spectrum of the star can be used to determine its spectral type and luminosity class

Fill in the blank(s) with correct word


Spectroscopic parallax

Physics & Space Science

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Massive planets create ____________ Doppler shifts of their stars than lower-mass planets

Fill in the blank(s) with correct word

Physics & Space Science

How does the work required to stretch a spring 2 cm compare with the work required to stretch it 1 cm?

a) same amount of work b) twice the work c) 4 times the work d) 8 times the work

Physics & Space Science

A star's ________ parallax is found by using the spectral lines to estimate the spectral class and luminosity of distant stars

Fill in the blank(s) with correct word

Physics & Space Science

The Permian period experienced major extinctions, which may have been due to

A) global warming. B) the emergence of the reptile. C) the breakup of Pangaea. D) the formation of Pangaea.

Physics & Space Science