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Dima020 [189]
3 years ago
5

What is the movement of a stationary object?

Physics
1 answer:
galben [10]3 years ago
8 0
If it is stationary, its not moving. there is no movement
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Heart cells must contract simultaneously to move blood.
krek1111 [17]

Answer:

<u>A</u>

Explanation:

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Therefore, the connections among heart cells are characterized by :

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The correct option should be <u>A</u>

4 0
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Four point charges have the same magnitude of 2.4×10^−12C and are fixed to the corners of a square that is 4.0 cm on a side. Thr
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Answer:

7.2N/C

Explanation:

Pls see attached file

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How should parents raise their intersex children: as girls, boys or intersex?
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If the velocity versus time graph of an object is a horizontal line, the object is
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2 years ago
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A parallel plate capacitor with air between the plates has a potential difference of 71.0 V. Determine the potential difference
Gwar [14]

Answer:

15.8 V

Explanation:

The relationship between capacitance and potential difference across a capacitor is:

q=CV

where

q is the charge stored on the capacitor

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Here we call C and V the initial capacitance and potential difference across the capacitor, so that the initial charge stored is q.

Later, a dielectric material is inserted between the two plates, so the capacitance changes according to

C'=kC

where k is the dielectric constant of the material. As a result, the potential difference will change (V'). Since the charge stored by the capacitor remains constant,

q=C'V'

So we can combine the two equations:

CV=CV'\\CV=(kC)V'\\V'=\frac{V}{k}

and since we have

V = 71.0 V

k = 4.50

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V'=\frac{71.0}{4.50}=15.8 V

6 0
2 years ago
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