An 1.8 x 10³ kg airplane starts from rest and accelerates uniformly to a speed of 65 m/s in 8.0 s. Determine the power produced by the plane's engine if the aircraft feels a 1.0 x 10³ N resistance force.

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.

f is prop to m1xm2 double m1 double force

that would be because of both gravity and friction. so     c