What properties do you think a spoon must have for it to be useful as an eating tool? What additional properties must an edible spoon
have?

There are numerous features of a spoon but these properties must an edible spoon

have

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eating instrument must be: HARDNESS,  INERT, NOT TOXIC

eating tools: digested by the body

Explanation:

An eating instrument must be able to contain food, so it must have a good HARDNESS, besides it must be poorly absorbent of heat and the most important must be INERT, not react with food or be NOT TOXIC to humans.

Additionally, for a spoon to be edible, it must be able to be digested by the body, in general they are made with a starch base, so that the non-digestible parts of it have not been toxic to the body and can be eliminated from it.

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq

a sonic boom is a loud boom that breaks the sound barrier

explanation: