Question

Kelly and Jane are playing a trick on their father. They have magnetised one of his steel door keys so that it keeps getting stuck in the lock. He is very angry. The girls tell their father that he can demagnetise the key by hitting it with a hammer. Are they telling the truth?

Answer 1

Answer:

Yes...

Explanation:

But if they hammer the door,apart from the magnet the door will also be harmed...

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