2 years ago

Describe a scenario when you could use energy but not do any work.

1 answer:

4 0

Answer:

When you don't move, you still use energy. This energy is called potential energy, or, stored energy.

When you don't move or do work, you can use energy.

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sweet [91]

Your answer is c. homologous structures

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2 years ago

andrezito [222]

Answer:

i do not know

Explanation:

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1 year ago

marissa [1.9K]

The correct answer is D.

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liraira [26]

The Answer is B

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2 years ago

tatuchka [14]

Answer:

Charge, $q=7.68\times 10^{-12}\ C$

Explanation:

It is given that,

The number of electron in a RBCs, $n=4.8\times 10^7$

We need to find the total charge of these electrons in the red blood cell. Let it is q. Using the quantization of charge as follows :

q = ne

e is the change on electron

$q=4.8\times 10^7\times 1.6\times 10^{-19}\\\\q=7.68\times 10^{-12}\ C$

So, the net charge is $7.68\times 10^{-12}\ C$ .

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2 years ago