A star is moving toward the earth far away in space. The light of the star experiences a
a) sonic boom
b) standing wave
c) blue shift
d) red shift
A star is moving toward the earth far away in space. The light of the star...
solve for 7-8-9-10 QUESTION 7 Which of these electromagnetic waves has the longest wavelength? a. ultraviolet Waves b. Infrared waves O c. blue d. red e. X-ray QUESTIONS A star is moving away from the earth the fight of the star experiences a a. sonic boom b. red shift c. blue shift de standing wave QUESTION 9 At sunset, the sun looks red and orange because a larger wavelengths have been filtered out by the upper atmosphere b. smaller wavelengths...
1) For a star that is moving away from the Earth, a) the spectral lines of the star are much narrower than the spectral lines of an identical star that is not moving towards or away from the earth. b) the spectral lines of the star are shifted towards the blue end of the spectrum compared to an identical star that is not moving towards or away from the earth. c) the spectral lines of the star are shifted towards...
Light from the star Betelgeuse takes 640 years to reach Earth. How far away is Betelgeuse in units of light-years? a. Betelgeuse is 980 light-years away. b. Betelgeuse is 640 light-years away. c. Betelgeuse is 1900 light-years away. d. Betelgeuse is 520 light-years away.
A starship moving at 0.85c travels from Earth to the Wolf-359 system, 7.9 light years away. How long will the trip take according to a) Earth’s clocks? b) the starship’s clocks? c) How far is it from Earth to the star according to the starship’s crew? d) What do they compute their speed to be?
3. A starship moving at 0.85c travels from Earth to the Wolf-359 system, 7.9 light years away. How long will the trip take according to a) Earth’s clocks? b) the starship’s clocks? c) How far is it from Earth to the star according to the starship’s crew? d) What do they compute their speed to be? 3. A starship moving at 0.85c travels from Earth to the Wolf-359 system, 7.9 light years away. How long will the trip take according...
Electromagnetic radiation from a star is observed with an earth-based telescope. The star is moving away from the earth with a speed of 0.570c. If the radiation has a frequency of 8.64×1014Hz in the rest frame of the star, what is the frequency measured by an observer on earth? Express your answer with the appropriate units.
3. A starship moving at 0.85c travels from Earth to the Wolf-359 system, 7.9 light years away. How long will the trip take according to a) Earth’s clocks? b) the starship’s clocks? c) How far is it from Earth to the star according to the starship’s crew? d) What do they compute their speed to be?
Star E is 19 Mega parsecs from Earth. How far in Mega light years is Star E from Earth?
How fast (as a percentage of light speed) would a star have to be moving so that the frequency of the light we receive from it is 14.0 % higher than the frequency of the light it is emitting? Would it be moving away from us or toward us? (Assume it is moving either directly away from us or directly toward us.)
The nearest star to Earth is Proxima Centauri, 4.3 light-years away. Part A At what constant velocity must a spacecraft travel from Earth if it is to reach the star in 4.9 years, as measured by travelers on the spacecraft? b: How long does the trip take according to Earth observers? in years