Chemistry, 18.07.2019 02:30, PLEASEHELP4528
An electric motor is connected to a battery. the current flows through brushes to a commutator ring, which is attached to an electromagnet turning through a permanent magnetic field. what is the purpose of the commutator ring? a. it periodically reverses the current flow through the electromagnet. b. it turns the electromagnet in the opposite direction. c. it allows mechanical energy to be converted into electrical energy. d. it keeps the electromagnet from losing its magnetism.
Answers: 1
Chemistry, 22.06.2019 16:00, anferneebcoleman
How many moles of oxygen react with 12 moles of aluminum
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Chemistry, 23.06.2019 07:00, jstyopin
In order for a high temperature boiler or steam engine to produce superheated water, or steam: the heat source must be greater than 100°c the water must be permitted to evaporate quickly the system must be sealed and become pressurized above atmospheric pressure the vapor pressure must be kept below 760 mm(hg)
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Chemistry, 23.06.2019 08:30, xojade
According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.
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