During a baseball game a pitcher threw a baseball, and the catcher, who was behind home plate, caught it. which is true about the pitcher when the catcher caught the ball? a) he saw the catcher catch the ball first. b) he heard and saw the ball at the same time. c) he heard the sound of the catcher's mitt first. d) he saw the catcher catch the ball, but did not hear it.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

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.