Physics

I need help with these 8 questions, please

Electric Field Problems . When a test charge of +4 nC is placed at a spot, it experiences a force of 8 x 10 N to the left. a. What is the strength of the electric field at that spot? (2000 N/C) b. What is the direction of the electric field at that spot? At a specific spot there is an electric field pointing to the left with a strength of 120 N/C. You place a negative test charge at that spot and it experiences a force of 0.65 N. a. What is the amount of charge on the test charge? (0.0054 C) b. What is the direction of the force on the test charge? . When a test charge of +8.5 puC is placed at a spot with an electric field of strength 15 N/C it experiences a force. What is the size of that force? (1.3 x 104 N) . When you place a positive test charge in a specific spot, it experiences a force to the right. a. What is the direction of the electric field at that spot? b. If you put a negative charge at that spot, which direction would it move? In a region of space there is an electric field pointing South with a strength of 27 N/C. a. If you place a test charge of -0.05 C at that spot what is the size and direction of the force acting on that test charge? (1.35 N North) b. If you instead you place a test charge of +0.2 C at that spot, what is the size and direction of the force acting on this new test charge? (5.4 N South) . When a +0.008 C test charge is place in an electric field, there is a force acting on it of 4.7 N to the left. What is the strength of the electric field? (587.5 N/C) A negative test charge is placed in a spot where the electric field strength is 4.9 N/C. If the charge experiences a force of 0.07 N to the left, a. What is the size of the charge on the test charge? (0.014 C) b. What is the direction of the electric field at that spot? What is the size of the force acting on a 7 nC test charge placed in an electric field with a strength of 400 N/C? (2.8 x 10N)