A baseball player bats a ball with a force of 1000 N. The ball exerts a reaction force against the bat of less than or more than 1000 N

Greater then 1000 N.

Explanation: Due to Newton's Third law, (For every reaction, there is an equal and opposite reaction) there must be an opposite reaction for the baseball to bounce off the bat, and it has to be greater than 1000 N.

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.