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pshichka [43]
3 years ago
14

When a parallel-plate capacitor is connected to a battery: a ___ is stored on one plate, and a ____ is stored on the other.

Physics
1 answer:
Ronch [10]3 years ago
3 0

Answer:

a.) negative charge, positive charge

Explanation:

In order to solve this problem, we will need to see the image that can be seen in the attached image.

The point a has a higher potential than point B of the resistance R as the current flows from a to b.

The positive plate of capacitor b has higher potential than the negative plate c.

Once the capacitor has been charged to the nominal value, it will have the same potential of the battery, its terminals will open interrupting the flow of current. But keeping the potential or voltage differential through its points. This will allow the capacitor to work as a battery while discharging.

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How much heat must be removed from 456 g of water at 25.0°C to change it into ice at - 10.0°C?
Svet_ta [14]

Answer:

229,098.96 J

Explanation:

mass of water (m) = 456 g = 0.456 kg

initial temperature (T) = 25 degrees

final temperature (t) = - 10 degrees

specific heat of ice = 2090 J/kg

latent heat of fusion =33.5 x 10^(4) J/kg

specific heat of water = 4186 J/kg

for the water to be converted to ice it must undergo three stages:

  • the water must cool from 25 degrees to 0 degrees, and the heat removed would be Q = m x specific heat of water x change in temp

        Q = 0.456 x 4186 x (25 - (-10)) = 66808.56 J

  • the water must freeze at 0 degrees, and the heat removed would be Q = m x specific heat of fusion x change in temp

         Q = 0.456 x 33.5 x 10^(4) = 152760 J

  • the water must cool further to -10 degrees from 0 degrees, and the heat removed would be Q = m x specific heat of ice x change in temp

        Q = 0.456 x 2090 x (0 - (-10)) = 9530.4 J

The quantity of heat removed from all three stages would be added to get the total heat removed.

Q total = 66,808.56 + 152,760 + 9,530.4 = 229,098.96 J

6 0
3 years ago
A 10,000kg space ship is orbiting the moon with a radius of 25km from the ship to the center of the moon. It's tangential speed
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Answer:

False

Explanation:

ac = v^2/r

acceleration is not dependent on the mass of the orbiting object.

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My best guess is c) Dark colors reflect less radiation making them warmer.

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green pigment

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green pigment

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