Like kinds of magnetic poles repel while unlike kinds of magnetic poles

A. attract.
B. repel also.
C. may attract or repel.

A. attract

Explanation:

A magnetic pole is region at the ends of a magnet where the external magnetic field has the strongest magnitude.

Unlike kinds of magnetic poles attract each other. This is due to magnetic flux likes at the poles of the magnet.

The North magnetic pole has flux lines that flow/point outwards while South magnetic pole has flux lines that flow/point inwards, hence, when they are brought close to one another, they attract.

This is shown in the diagrams below.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

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 .