Could i please get some help with this, it would mean a lot, thank you.

Question 1 Metal In the gure provided. a metal sphere is suspended in air by athread. When the north pole of a bar magnet is brought near the sphere. the sphere is strongly attracted to the magnet. Which of the following is true if the magnet is reversed and its south pole is brought near the sphere? O The sphere is attracted to the magnet. O The sphere is unaffected by the magnet. O The sphere is repelled by the magnet. Question 2 X XXXX X XXXX XXX X X B XXX X X X XXXX XXXXX An electron enters a region with a magnetic field pointing inwards, as shown above. What is the correct path the electron follows? OA B OCQuestion 3 B A proton is moving to the left with speed 5.50 x 10 m/s, as shown above. What is the direction of the magnetic field produced by the proton at point B? O There is no magnetic field. O Into the page. O Out of the page. O Towards the left.Question 4 Evaluate the cross product E X 9 of the two vectors above. They are separated by an angle of 'I 60 and have magnitudes given by: Vector A: 9.00 Vector B: 4.00 O (33.8, into the screen) C) (12.3, out of the screen) C) (33.8, out of the screen) O (12.3, into the screen) 1. (Knight Problem 29.5) What is the magnetic field at the position of the dot in FIGURE EX29.5? [Answer: 2.83 x 10 16 k T.] y (cm) 2.0 x 10' m/s 1 . Proton x (cm) FIGURE EX29.5 2. (Knight Problem 29.13) A wire carries current / into the junction shown in FIGURE EX29.13. What is the magnetic field at the dot? [Answer: 0 T.] Identical wires d FIGURE EX29.13 3. (Knight Problem 29.17) A 100 A current circulates around a 2.0-mm-diameter superconducting ring. a. What is the ring's magnetic dipole moment? [Answer: 3.1 x 10 Am-. ] b. What is the on-axis magnetic field strength 5.0 cm from the ring? [Answer: 5.0 x 10 ' T.] 4. (Knight Problem 29.23) The value of the line integral of B around the closed path in FIGURE EX29.23 is 1.38 x 10-5 T m. What are the direction (in or out of the page) and magnitude of /3? [Answer: 23.0 A, into the page.] 1 = 18 AO O 04 = 20 A 12 = 12 A FIGURE EX29.231 The metallic sphere will be attracted if the polarily of the magnet in reversed. The sphere is a metallic piece, It gets attracted by the magnet whether its the north pole or the south pole that faces the metallic piece