If an electromagnet is made using a battery circuit and a steel nail, how can its magnetic strength increase? 1-wrap more coils of wire around the nail 2-use a longer nail 3-remove the plastic insulation from the wire coil 4-replace the nail with a copper rod

Which position represents spring in the southern hemisphere? a) b) c) d)

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?