Which of the following are valid overloaded methods?

1)
public void somemethod(int num)
public void somemethod(string str)
public int somemethod(int num)

2)
public int somemethod(int num)
public double somemethod()
public string somemethod(string str)

3)
public void somemethod(int num)
public double somemethod(double num)
public double somemethod()

answer; question (1) answer; proximity;

                      question (2); // alignment;

the answer is gallery.

answer6-9 screws;

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.