You and a friend are pulling on a rope in opposite directions as hard as you can? What is the “equal and opposite force” to the force of your hand pulling on the rope described by Newtons Third Law?
A. The force of your arm pulling back on your hand.
B. The force of the rope pulling your friend’s hand.
C. The force of your friend pulling on the rope in the opposite direction.
D. The force of the rope pulling on your hand in the opposite direction.
E. The force of friction between the ground and your shoes.

its D the force of the rope pulling on your hand in the opposite  direction

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.

see earlier