Chemistry, 11.06.2021 21:20 bullockarwen
Place the four steps in order to explain how an electric motor works. 1.A loop of wire is placed between the poles of a permanent magnet. The wire is attached to a commutator. Current runs through the electromagnet. 2.The direction of the current switches, causing the poles to switch and causing the magnetic field to reverse. 3.Electromagnetic forces, caused by the interaction of the electromagnet and permanent magnet, cause the electromagnet to rotate. 4.The electromagnet continues to rotate, causing the direction of the current to continue to change while the wire turns.
Answers: 3
Chemistry, 22.06.2019 10:50, mi364
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Place the four steps in order to explain how an electric motor works. 1.A loop of wire is placed bet...
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