"A magnet with a red end and blue end is tied to a string and suspended from the ceiling. The red end is found to orient northward. A second magnet with a green end and yellow end is brought near the first magnet and it is observed that the green end attacts the red end. You then know that the yellow end is a magnetic

A. Northpole
B. Southpole
C. can't be sure because the orientaion of the second magnet in the earth's field not specified.

If we consider the north pole of the earth as the north pole of the magnet in the nucleus of the earth, we have to consider that the the magnet with the red end is a magnetic southpole (because opposite poles try to get closer). Consequently, the green end is magnetic northpole and the yellow end is a magnetic southpole.

Hence, the answer  is

B. Southpole

I hope this is useful for you,

Regards

c) up is the direction the magnetic force is acting on the charge.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .