If a projectile that was launched from the ground with an initial velocity 100 m/s in the direction 30° north of east collides a rocket that was fired due east 4 s after the projectile reached its highest point, how high up was the rocket fired and with what velocity given that the rocket has a constant velocity and was fired when the projectile was over head?

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.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

explanation:

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