four point charges on corners of a square.. top left -1, top right +2, bottom left -2, bottom right -1 ... object in middle is -1 ... which direction will that object move? up, down, left, or right (no angles)

To determine the direction in which the object in the middle of the square will move, we need to consider the net electrostatic force acting on the object due to the surrounding charges.

Let's analyze the forces exerted by each charge on the object:

1. The top left charge (-1) will exert a repulsive force on the object, pushing it away from itself.
2. The top right charge (+2) will exert an attractive force on the object, pulling it towards itself.
3. The bottom left charge (-2) will also exert a repulsive force on the object, pushing it away from itself.
4. The bottom right charge (-1) exerts a repulsive force on the object, pushing it away.

Taking these forces into account, we can conclude that the net force acting on the object is an upward force (since the attractive force from the top right charge (+2) is greater than the combined repulsive forces from the other charges).

Therefore, the object in the middle of the square will move in the UPWARD direction.

To determine the direction in which the object in the middle of the square will move, we need to consider the direction of the net electrostatic force acting on it.

We know that opposite charges attract each other, and like charges repel each other. In this case, the object in the middle has a negative charge, and the charges at the corners of the square have a combination of positive and negative values.

Let's analyze the forces acting on the object:
1. The top-left corner has a charge of -1, which exerts an attractive force on the object towards the left.
2. The top-right corner has a charge of +2, which exerts a repulsive force on the object towards the right.
3. The bottom-left corner has a charge of -2, which exerts a repulsive force on the object towards the left.
4. The bottom-right corner has a charge of -1, which exerts an attractive force on the object towards the right.

Adding up these forces, we can see that there is a net force pulling the object towards the right. Therefore, the object in the middle of the square will move to the right direction.