During a hurricane, a large tree limb, with the mass of 23.0 kg at a height of 15.3 m above the ground, falls on a roof that is%5.00 m above the ground. Ignoring air resistance, a. what is the kinetic energy of the limb when it reaches the roof?

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.