3. The nebular hypothesis explained certain other observations of the solar syst
ID: 107597 • Letter: 3
Question
3. The nebular hypothesis explained certain other observations of the solar system:
planet and asteroids all move in the same direction around the sun
most of the planets rotate in the same direction as earth
the orbits of the planets are nearly circular or elliptical
all of the above
4. True or False? The Doppler Effect and the red shift effect are similar ways to measure distance separation.
A.planet and asteroids all move in the same direction around the sun
B.most of the planets rotate in the same direction as earth
C.the orbits of the planets are nearly circular or elliptical
D.all of the above
Explanation / Answer
3)According to nebular theory all the above are correct.
D) all the above.
Planets and asteroids all move in the same direction around the sun as they are formed from gaint cloud of vast hot gas.planets and asteroids move around the central nebula which shrinks and finally forms the sun.hence they move around the sun.all the planets are formed from a disk of debris around the protosun.hence all the planets rotate in the same direction as earth.
The orbits of the planets are nearly circular.
4) True.both are same but red shift is an example for Doppler effect.Doppler effect is the shifting of the frequency of sound when the source of sound and the observer are moving relative to each other.red shift is the same way but the wavelength if light shifts to the red color of the spectrum.Hence these are similar ways to measure distance speration.
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