All machines are not 100% efficient because of <span>C. Friction</span>
Answer:
Explanation:
The properties of magnets are used to make electricity. Moving magnetic fields pull and push electrons. ... Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.
I think the correct answer would be to electrolyze water (run an electric current through it) to decompose it into hydrogen and oxygen. Assuming 100% efficiency, it is said that it needs about 40kWh per kilogram of water to fully decompose it.
Answer:
i think it is iron
Explanation:
its the only one that makes sense to me
Answer:
the charge that is given by the object is positive charge and the object which is taking the charge is negetively charged
Explanation:
