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Ymorist [56]
3 years ago
13

Consider horizontal parallel plates with a fixed potential difference. The upper plate has a voltage difference of 30 V with the

lower plate, and they are separated by 3 cm. You move the two plates carefully to a separation of 4 cm. What is the strength of the electric field between the plates?
Physics
1 answer:
BlackZzzverrR [31]3 years ago
5 0

relation between potential difference and electric field is given as

E . d = \Delta V

so here we know that

d = 3 cm

\Delta V = 30 V

E \times 0.03 = 30

E = 1000 N/C

So now when plates are separated to 4 cm distance carefully

the potential difference between them will change but the electric field between them will remain constant

So at distance of 4 cm also the electric field will be E = 1000 N/C

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Answer:

Total momentum, p = 21.24 kg-m/s

Explanation:

Given that,

Mass of first piece, m_1=200\ g= 0.2\ kg

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Speed of the first piece, v_1=82\ m/s (along x axis)

Speed of the second piece, v_2=45\ m/s (along y axis)

To find,

The total momentum of the two pieces.

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The total momentum of two pieces is equal to the sum of momentum along x axis and along y axis.

p_x=m_1v_1

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The net momentum is given by :

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g The speed of light in a vacuum is larger for short wavelength electromagnetic waves. larger for high frequency electromagnetic
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Answer:

A constant value everywhere in the universe.

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The speed of light is the constant of proportionality between frequency and wavelength. In order words, wavelength and frequency are inversely proportional. As the wavelength increases, frequency decreases and vice versa.

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6 0
3 years ago
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astraxan [27]

Answer:

3A is the larger of the two currents.

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given:

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