(SCIENCE) 22 POINTS AND CROWN ASAP
Which of the following describes the net force acting on an object?

A: The sum of all forces acting on an object
B: The gravitational force minus any contact forces acting on an object
C: The difference between the normal force and the gravitational force acting on an object
D: The sum of all the forces acting on an object in the same direction

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above