You're outside on a cold day (tout = 0 °c)listening to your ipod with an external circular speaker having a diameter 0.0550 m. because of the cold you decide to go inside where the temperature is 27.5 °c. if your favorite song begins with a 8.54-khz tone, find the change in the diffraction angle of this tone assuming the air behaves as an ideal gas.

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.