Draw a free-body diagram showing forces on the sprinter and the surface. Draw the vectors starting at the black dots. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.

Explanation:

my diagram and My Autograph

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.

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right