Technician A says the primary purpose of a thermostat is to cause the engine to warm up as soon as possible. Technician B says the thermostat should be removed from the cooling system only if the engine is overheating. Who is correct?
1. Technician A
2. Technician B
3. Both technician are correct
4. None of the technician is correct

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.