Final answer:
The charge density on the sheet is 1.2 x 10^-13 C/m².
Step-by-step explanation:
To find the charge density on the sheet, we can use the equation for electric flux, which is given by:
Electric Flux = Charge Density * Area
Here, the electric flux is given as 3 x 10-5 Nm²/C and the area is the square-shaped area with a side of 5 cm. Plugging in these values, we can solve for the charge density:
3 x 10-5 Nm²/C = Charge Density * (0.05 m)2
Charge Density = (3 x 10-5 Nm²/C) / (0.05 m)2 = 1.2 x 10-13 C/m²
Therefore, the charge density on the sheet is 1.2 x 10-13 C/m².