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3 years ago

Why is an earthworm an invertebrate?

2 answers:

8 0

Earthworm have bones Some children confuse earthworms, which are invertebrates and have no bones, with snakes which are vertebrates and do have a bony skeleton and many ribs.

Rainbow [258]3 years ago

6 0

Hello

Because that creature had not bones in its structure.

Best regards

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Can someone please help me solve these questions

yanalaym [24]

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4 years ago

Que fracción de luz que llega directa a una lamina de vidrio se refleja en la primera superficie?

Veseljchak [2.6K]

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unos 40 o30 pienso

Explanation:

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3 years ago

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Jobisdone [24]

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3 years ago

Read 2 more answers

I shared a picture of the problem. It’s a basic Physics question and an Algebra question.

julia-pushkina [17]

Hence the expression of ω in terms of m and k is

$\omega = \sqrt{\frac{k}{m}$

Given the expressions;

$T_s = 2 \pi \sqrt{\frac{m}{k} } \ and \ T_s = \frac{2 \pi}{\omega}$

Equating both expressions we will have;

$2 \pi \sqrt{\frac{m}{k} } = \frac{2 \pi}{\omega}$

Divide both equations by 2π

$\frac{2 \pi\sqrt{\frac{m}{2 \pi} } }{2 \pi}=\frac{\frac{2 \pi}{\omega} }{2\pi}\\\sqrt{\frac{m}{2 \pi} } = \frac{1}{\omega}\\$

Square both sides

$(\sqrt{\frac{m}{k} } )^2 = (\frac{1}{\omega} )^2\\\frac{m}{k} = \frac{1}{\omega ^2} \\\omega ^2 = \frac{k}{m}$

Take the square root of both sides

$\sqrt{\omega ^2} =\sqrt{\frac{k}{m} } \\\omega = \sqrt{\frac{k}{m}$

Hence the expression of ω in terms of m and k is

$\omega = \sqrt{\frac{k}{m}$

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3 years ago

Why would a person’s self-esteem affect his or her health?

valentinak56 [21]

Answer: C.

because low self-esteem comes from a bad diet, which is bad for a person’s physical and mental/emotional health

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4 years ago