If you are looking for an insulator you are looking for a material that a) allow the flow of electrons. b) inhibit the flow of neutrons. c) allow the flow of protons. d) inhibit the flow of electrons.

D. inhibit the flow of electrons because they want to stop all flow just like stop cold from getting in the house

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.

f=ma newton

f=100x2.5=250n