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torisob [31]
3 years ago
8

Which of the following is a type of physical change?

Physics
2 answers:
goblinko [34]3 years ago
8 0
Answer is C. All of the others are internal/molecular changes.
Charra [1.4K]3 years ago
7 0
Answer is C

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds
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The answer you’re looking for is
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IamSugarBee

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3 years ago
As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted o
STatiana [176]

Answer:

3335400 N/m² or 483.75889 lb/in²

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g = Acceleration due to gravity = 9.81 m/s²

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F = Force = mg

When we divide force by area we get pressure

P=\frac{F}{A}\\\Rightarrow P=\frac{mg}{A}\\\Rightarrow P=\frac{51\times 9.81}{1.5\times 10^{-4}}\\\Rightarrow P=3335400\ N/m^2

1\ N/m^2=\frac{1}{6894.757}\ lb/in^2

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