A car is moving around a circular track of radius 25m with a speed of 30 m/s. What is the centripetal acceleration of the car? * A 72 m/s2
B 36 m/s2
C 30 m/s2
D 6 m/s2

I don't know how to do it the subject

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.

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid