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Sidana [21]
3 years ago
10

Who discovered natural magnet for the first time?​

Physics
1 answer:
andrew-mc [135]3 years ago
8 0
Answer: Magnes



Explanation: Magnes found that the nails and buckle of his sandals and the tip of his staff were attracted to the rock he was standing on. He dug up the Earth to find lodestones. Lodestones contain magnetite, a natural magnetic material Fe3O4.
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12
Svet_ta [14]

Answer:

See below ~

Explanation:

An object will sink in water when its density is greater than that of water, which is 1 g/cm³.

Volume of the box is <u>1331 cm³</u>. (11³)

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  • Volume of sand = Mass of sand / Density of sand
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