1. A cubic space (1.5m on each side) contains positively charged particles. Imagine that the space is surrounded by Gaussian surface of the exact same dimension as the cube and that the E-field caused by the charges is normal to the faces of Gaussian cube. If the E-field at each surface has magnitude of 760 N/C, determine the number of charges per unit volume in the space described (ie., find the charge density. 2. A point charge of -2 microCoulomb at the center of the cube with sides L= 5cm. What is the net electric flux through the surface? 3. A charge is located inside the cube ( is not at the center ) a. Find the net electric flux passing through the surface of the cube? b. Can you find the electric field on the surface of the cube using Gauss's Law? 4. A metal sphere of radius 10 cm carries a charge of + 2.0 microCoulomb uniformly distributed over its surface. What is the magnitude of the electric field due to this sphere at a point 5.0 cm outside the sphere surface? NOTE; Use short bond paper and black ball pen and make your solutions presentable as you can. Include the given and formula in the solution, thank you