Aspaceship in distress sends out two escape pods in opposite directions. one travels at a speed v1 = + 0.70 c in one direction, and the other travels at a speed v2 = − 0.76 c in the other direction, as observed from the spaceship. part a what speed does the first escape pod measure for the second escape pod? express your answer using two significant figures.

To develop this problem it is necessary to apply the related concepts at relative speed.

When an observer perceives the relative speed of a second observer, the function is described,

Where,

= The velocity of the first escape pod

= The velocity of the second escape pod

c = Speed of light

v' = Speed of the first escape pod relative to the second escape pod.

Our values are given as,

= 0.7c

= -0.76c

Replacing we have,

Therefore the speed of the first escape pod measure for the second escape pod is

this is a good question! i'll do some research and come back when i have the answer!

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.