Revolution + tilt = what

If the new moon happens on january 15th, what shape will it be on february 6th?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.