How long does it take from the full moon phase to the new moon phase

15 days

Explanation:

Each phase takes 3.75 days to go to the next phase.

So it will take four phases for the full moon to go to the new moon phase

We can use the information above to convert it into an equation to find the answer ( 3.75 x 4 = 15 )

the answer is definitely c.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.