H. A steel wire of uniform cross section Im'is heated to 70°C and stretched by tying its
two ends rigidly. Calculate the tension in the wire when the temperature falls from
70°C to 35°C [coefficient of linear expansion of steel (x) = 1.1x10/C and the
Young's Modulus (Y)= 2x10' N/m?).​

i would think it's food chain

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.