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soldier1979 [14.2K]
3 years ago
13

to remove a tight fitting lid from a jar, megan runs the lid under hot water what happens to the jar lid when its temperature in

creases
Physics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0

Answer:

Expands

Explanation:

The tight fitting lid of the jar will expand when Megan runs hot water on it. This makes the lid loose and freely moves.

  • Increase in temperature for most substances causes expansion.
  • A body that expands takes up more volume for the same amount of matter.
  • The tight fitting will be more free to move about and the cover will be released.
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Three resistors connected in series have potential differences across them labeled /\V1 , /\V2 , and /\V3. What expresses the po
Brrunno [24]

Answer:

\Delta V=\Delta V_1+\Delta V_2+\Delta V_3

Explanation:

We are given that three resistors R1, R2 and R3 are connected in series.

Let

Potential difference across R_1=\Delta V_1

Potential difference across R_2=\Delta V_2

Potential difference across R_3=\Delta V_3

We know that in series  combination

Potential difference ,V=V_1+V_2+V_3

Using the formula

\Delta V=\Delta V_1+\Delta V_2+\Delta V_3

Hence, this is required expression for potential difference.

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3 years ago
Which kind of pressure prevents stars of extremely large mass from forming?
elena-14-01-66 [18.8K]

Answer:

Radiation pressure

Explanation:

Radiation pressure is gotten from the light source. The radiation pressure has a set mass limit of 150 solar masses. Any mass from 150 solar masses or below supports the formation of the stars.

However when the mass exceeds 150 solar masses the force of gravity is unable to hold the masses together and the excess mass

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3 0
4 years ago
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What might happen if transformers didn’t exist?
Karolina [17]

Answer:

B electricity could not be distributed through power lines to people's homes

7 0
3 years ago
A tin can has a radius of 0.0410m and is 185 m high if the air is removed from inside the can how much forces will the outside a
grin007 [14]

The force exerted on the bottle is 532 N

Explanation:

When the air is removed from inside the bottle, vacuum is created, therefore the external pressure (the atmospheric pressure) is no longer balanced, and it creates a net force downward on the can.

The pressure is related to the force by the equation:

p=\frac{F}{A}

where

p is the pressure

F is the force

A is the area of the can

Here we have:

p=1.01\cdot 10^5 Pa is the atmospheric pressure

r = 0.0410 m is the radius of the can, so the area is

A=\pi r^2 = \pi (0.0410)^2=5.27\cdot 10^{-3}m^2

And solving for F, we can find the force on the can:

F=pA=(1.01\cdot 10^5)(5.27\cdot 10^{-3})=532 N

Learn more about pressure:

brainly.com/question/4868239

brainly.com/question/2438000

#LearnwithBrainly

3 0
4 years ago
Describe what you think the phrase “greater freedom of movement” means?
JulijaS [17]
<h2>Answer: where the is freedom for all , where we can all be together equal in peace , where eveyone can be happy and live in harmony </h2>

Explanation:

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