Consider an electric field = 2x - 3y . the coordinates x and y are measured in meters and the electric field is in n/c. what is the magnitude of the flux of this field through a square whose corners are located at

It is really hard for me right know

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

Acar weighs 15,000 n, and its tires are inflated to a pressure of 190kpa. how large is the area of the car's tires that are in contact with the road?