Question

3. Why does bar magnet always point in north-south direction ?​

Answer 1

Answer:

The Function Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in one argument and produces a result. Hence this functional interface takes in 2 generics namely as follows:

T: denotes the type of the input argument

R: denotes the return type of the fun

Answer 2

Answer: freely suspended magnet always points in north - south direction. This is because its south pole is attracted by earth's north pole and the north pole of the magnet is attracted by the earth's south pole. when we hang it freely it automatically starts pointing in north-south direction. please mark as brainliest