At Time 1, a cool air mass is moving from Location 1 toward a stationary warm air mass at Location 2. After the cool air mass collides with the warm air mass at Time 2, clouds begin to appear over Location 2. The partial model below shows the two air masses at Time 1 but does not show their interaction at Time 2. Identify what happened at Time 2 when the cool air mass collided with the warm air mass at Location 2 and clouds formed.

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.

+15-35=-20

going in opposite directions