A tennis ball launcher works by using a spring to propel the ball forward as shown in the picture.
One model of tennis ball launcher has advertised that it is capable of imparting 15,000 of
kinetic energy to a 0.5 kg ball initially at rest. A student carefully measures the compression of
the spring to be 0.10 m.
um
What is the elastic energy stored in the spring?*
(6 Points)

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

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic