The diagrams below each show the motion of a distant star relative to earth (not to scale). the red arrows indicate the speed and direction of the star’s motion: longer arrows mean faster speed. rank the stars based on the doppler shift that we would detect on earth, from largest blueshift, through no shift, to largest redshift.

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

cant without the picture! ?

force tends to be low and long diustance masses are high

a sonic boom is a loud boom that breaks the sound barrier

explanation: