What determines the current phase of the moon? *
A. The seasons
B. How much of the sunlit part of the moon is visible
C. The 23.5 degree tilt of the Earth
D. The side of the moon facing Earth

B

Explanation:

The reason we see the moon is because the light from the sun is illuminating it. When the moon orbits around the Earth different parts if the moon are lit up by the sun.

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.

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered