(a) Determine the distance of separation between a positive ion and a negative ion, each carrying a charge equal to that on an electron, if their mutual force of attraction is -3 x 10-9 N.
(b) What is the coulomb potential energy of this ion pair? Give your answer in joules, calories,electron volts, and joules per mole of ion pairs.
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____________________ notes typically appear in the lower right-hand corner of a drawing and apply to the whole drawing.
Fill in the blank(s) with the appropriate word(s).
The framing square is smaller than the try square and is usually from 4 to 12 inches in length
Indicate whether the statement is true or false
If one compressor is used for three evaporators (two medium temperature and one low temperature), the two medium temperature evaporators will have evaporator pressure regulators installed at their inlets.
Answer the following statement true (T) or false (F)
Assume that a motor has known friction and windage losses described by the equation TFW = b?. Sketch the T -? characteristic of the motor if the load torque TL is constant, and the TL -? characteristic if the motor torque is constant. Assume that TFW at full speed is equal to 30 percent of the load torque.
Find: Sketch torque-speed curve