In a triad ground rod arrangement, the distance between the rods should be how many times greater than the depth of the rod that's the same size? A. Five B. Two C. Three D. Four

2. What type of charge is used as the test charge to determine the direction of electric fields?    A. small negative charge   B. small positive charge   C. small neutral charge   D. small uniform charge

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1. Using the symmetry of the arrangement, determine the direction of the force on +q in the figure below, given that: Case 1. 9a9b= +6 μC and 9c9d = +6 μC. = qa qc (a) In your notebook, draw the forces on q due to 9a9b²9c² and 9d. a' (b) Due to symmetry the direction of the net force is Hint: For each force draw the x and y components. Some will add and some will cancel. (c) Calculate the magnitude of the force on the charge q, given that the square is 10.0 cm on a side and q = 1.9 μC. Fnet = N Case II. 9a9b = +6 μC and 9c%d=-6 μC. VN qd qa qc qb O qd ► X (d) In your notebook, draw the forces on q due to 92, 9, 9 and 9d. Or use the result of of Homework: Charges on a Square Free Body Diagram. a' C' (e) Due to symmetry the direction of the net force is Hint: For each force draw the x and y components. Some will add and some will cancel. (f) Calculate the magnitude of the force on the charge q, given that the square is 10.0 cm on a side and q = 1.9 μC. Fnet =

What physical phenomenon predominantly contributes to the magentic field of the earth?   a. Charged particles from the solar wind that enter the earth's atmosphere   b. The ionization of metals in the earth's crust   c. Ionization in the earth's atmosphere   d.  Ion convection in the molten liquid shell that surrounds the earth's solid inner core   e. The total amount of ferromagnetic iron, cobalt, and nickel that is present in the earth's crust

Plz do both

A. high number of electrons on the doorknob.B. discharge of an imbalance of electrons.C. highly conductive surface of the doorknob.D. low resistance of the person’s skin.

what direction is the force on a positive charge when entering the uniform b in the direction indicated

4. Consider the diagram. Find the position x of the mass m such that the system is horizontal and balanced. Also for what value of h would there exist no force of the pivot on the rod? The fulcrum is at the midpoint of the rod. There is only a force of gravity on the hanging mass, not on the rod or the charges. Ignore the two coulomb forces that are diagonal. X=? +2g tQ +Q

4. How do two objects with like charges interact? What is the evidence from your investigations?