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Kryger [21]
3 years ago
13

What causes the pressure exerted by a gas in a container

Physics
2 answers:
Gnom [1K]3 years ago
7 0

Gas pressure is caused when gas particles hit the walls of their container. The more often the particles hit the walls, and the faster they are moving when they do this, the higher the pressure. This is why the pressure in a tire or balloon goes up when more air is pumped in.

yuradex [85]3 years ago
6 0

The rapid motion and collisions of molecules with the walls of the container causes pressure (force on a unit area). Pressure is proportional to the number of molecular collisions and the force of the collisions in a particular area. The more collisions of gas molecules with the walls, the higher the pressure.

I hope this helps you.

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Why is the percentage uncertainty in the electric field larger than the percentage uncertainty in the first row of voltages? Hin
Kryger [21]

Answer:

ΔE / E = ΔV / V + Δd / d

Explanation:

The electric field and voltage are related by the expression

      E = V / d

The uncertainty of the field is

       ΔE / E = ΔV / V + Δd / d

 

We see that the uncertainty of the field must be added the uncertainty of the distance that in the measure of the different potential has no effect.

The only case in which the uncertainties are equal is if the distance measurement has no uncertainty, or the separation of very high

4 0
4 years ago
If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air med
Kaylis [27]

Answer:  The red light bends the least while the violet the most.

Explanation:

i think this is it

3 0
3 years ago
The speedometer of your automobile shows that you are proceedig at a steady speed of 80 although your automobile is in accelerat
nika2105 [10]

Answer:

<em>The engine must provide power to compensate friction</em>

Explanation:

<u>Accelerated Motion </u>

Newton's first law states that a body will keep its speed or state of rest while no external net force is applied. Our automobile is running through a road which surface exerts a frictional force on the wheels. If we didn't use fuel, the automobile will eventually stop, because the unbalanced friction force causes deceleration. To compensate that force, we must provide power to the engine. When our speedometer shows a constant speed, the net force is zero, but the car needs to accelerate some, just to compensate the friction force.

The total acceleration keeps being zero, but the engine is actually doing work against friction.

7 0
3 years ago
A wire is 1.1 m long and 0.91 mm in cross-sectional area. It carries a current of 4.4 A when a 1.8 V potential difference is app
Vlad [161]

Answer:

The conductivity of the material from which the conductor is made is 2.95 x10⁶  [S. m⁻¹]  .

Explanation:

L= 1.1m

S= 0.91 mm²= 9.1 x10⁻⁷ m²

I= 4.4 A

V= 1.8V

\frac{V}{I} =R\\\\\frac{1.8V}{4.4A} =R= 9/22 ohms

R=9/22Ω

R=\frac{L}{σ . S} \\\\Conductivity=sigma=\frac{L}{R.S} \\\\Conductivity= \frac{1.1m}{9/22 ohms . 9.1 E10 (-7) square meters}

Conductivity=2.95 x10⁶  [S. m⁻¹]

3 0
3 years ago
Which type of energy is thermal energy a form of?
KATRIN_1 [288]
It's thermal Kinetic energy.
3 0
4 years ago
Read 2 more answers
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