Chemistry, 09.01.2021 07:00 ridzrana02

Which of the following describes a perpetual-motion machine? A. A battery that contains one oxidized metal and one reduced metal
B. A renewable energy source
C. A motor that requires no energy input once it is running
D. An electric motor that is powered by an electromagnet
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Which of the following describes a perpetual-motion machine? A. A battery that contains one oxidized metal and one reduced metal B. A renewable energy source C. A motor that requires no energy input once it is running D. An electric motor that is powered by an electromagnet SUBMIT

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Another question on Chemistry

Which of the following describes a perpetual-motion machine? A. A battery that contains one oxidized metal and one reduced metal
B. A renewable energy source
C. A motor that requires no energy input once it is running
D. An electric motor that is powered by an electromagnet
SUBMIT