How do the electrical force and the gravitational force compare?
The table lists the values of the electrical force and the
gravitational force between two protons.
Type
Force (N)
Electrical
6.26 x 10-32
Gravitational
5.02 x 10-08
The electrical force is 1.2 x 1036 times less than the
gravitational force.
The electrical force is 1.2 x 1036 times greater than the
gravitational force.
The electrical force is 8.0 10-37 times less than the
gravitational force.
The electrical force is 8.0 x 10-37 times greater than the
gravitational force.

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.