Could i please get some help on this ?

Level 2 Complete the 3 questions below. Question 1 The electric field in a region of space can be expressed by (375 + 1.16x103j + 649/) N/C. If a circle of diameter 25.0 cm is placed in the xz-plane of this region, what will be the electric flux through the circle? O 67.8 N m2/C 18.4 N m2/c O 31.9 N m2/C 56.9 N m2/c Question 2 The flux through a hexagonal prism is -1.63x103 Nm2/C. What is the charge inside the hexagonal prism? O 1.63x103 C O -28.1 C O -1.44x10-8 c O -1.52x103 CQuestion 3 b A point charge q sits at the center of a hollow metal sphere as shown above, where the inner radius is a = 7.00 cm and the outer radius is b =13.5 cm. There is +9.50 nC distributed on the inner surface of the sphere, and -24.3 nC on the outer surface. What is the magnitude of the electric field at a distance of 20.2 cm from the centre of the sphere? O 2.14E+04 N/C O 5.35E+03 N/C O 0.535 N/C O ON/C4. (Knight Problem 25.7) What -4.0 nC 3.0 nC is the electric potential en- + ergy of the group of charges 3.0 cm in Figure EX25.7? [Answer: -4.7 x 10-6 J.] 14.0 cm + 3.0 nC FIGURE EX25.7 5. (Knight Problem 25.13) What potential difference is needed to accelerate an electron from rest to a speed of 2.0 x 10" m/s? [Answer: 11.4 V.]6. (Knight Problem 25.25) Two 2.0-cm-diameter disks spaced 2.0 mm apart form a parallel-plate capacitor. The electric field between the disks is 5.0 x 10" V/m. a. What is the voltage across the capacitor? Answer: 1000 V.] b. An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.0 x 10' m/s. What was the electron's speed as it left the negative plate? [Answer: 7.0 x 106 m/s.]