I believe its 'magnetic induction' or 'electromagnetic induction'
Answer:Transformer
Explanation:All the other devices generate their own electricity apart from power line and Transformer, power line just carries electricity. A transformer can be used to step up or step down voltages from a source.
The force of gravity (mg) is the force of an object in free fall.
C) During chemical reaction, total mass remains the same.
This is because due to the law of conservation of mass, stating that in a chemical reaction, neither mass will be created nor destroyed. So, the total mass will not change when chemical reactions occur.
Answer:
Different street blocks are different lengths, so it won't be possible to answer this.