HVC140-Week 4 Exam A Name Date Instructor MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) This symbol represents: 1) A) Three phase motor. B) Compressor with internal overload. C) Transformer. D) Single phase motor. 2) Which diagram types are most useful for understanding the operating sequence of the unit? 2) A) Schematic B) Component location C) Pictorial D) Ladder 3) This symbol represents: 3) A) Heating thermostat. B) Cooling thermostat. C) Close on rise pressure switch. D) Open on rise pressure switch. 4) Installation wiring diagrams are used for: 4) A) Showing unit operational sequence. B) Showing the location of necessary field wiring. C) Location of all electrical components. D) Tracing individual circuits. 5) How is field wiring shown on most diagrams? 5) A) In red B) With solid lines C) In blue D) With dashed lines

Did the proton move into a region of higher potential or lower potential? did the proton move into a region of higher potential or lower potential? because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential. because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential. because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential. because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential. request answerpart bwhat was the potential difference that stopped the proton? express your answer with the appropriate units.î”v î” v = nothingnothingrequest answerpart cwhat was the initial kinetic energy of the proton, in electron volts? express your answer in electron volts. ki k i = nothing ev request answerprovide feedback

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

Positrons are spontaneously emitted from the nuclei of