In reality the skateboarder isn't a simple particle. Assume that his mass in a deep crouch is concentrated 0.75 mm from the half-pipe. If he remains in that position all the way up, what initial speed does he need to reach the upper edge?

hey , the answer is c

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.

amplitude

hope this