Four point charges are placed at the corners of a square as shown in the figure. Each side of the square has length 2.0 m. Determine the magnitude of the electric field at the point P, the center of the square. 3.0 × 10–6 N/C

1.8 × 104 N/C

2.7 × 104 N/C

2.0 × 10–6 N/C

9.0 × 103 N/C

Aregular polygon has angkes of size 150° each.how many side has the polygon

Explain the consequences of this addiction to the brain tissue

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.