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Westkost [7]
3 years ago
5

A sample neon gas has its volume tripled and its temperature held constant. What will be the new pressure relative to the initia

l pressure
Physics
1 answer:
liberstina [14]3 years ago
5 0

Answer:

Correct answer:  p₂ : p₁ = 1 : 3

Explanation:

A process that occurs at a constant temperature is called an isothermal process and the formula that applies to this process is:

p · V = const  where p is pressure and V is volume

Given : V₂ = 3 V₁

p₁ V₁ = p₂ V₂  ⇒ p₂ / p₁ = V₁ / V₂ ⇒  p₂ / p₁ = V₁ / 3 V₁ ⇒  p₂ / p₁ = 1 / 3

p₂ : p₁ = 1 : 3

which means that when the volume is increased three times the pressure is reduced three times

God is with you!!!

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(a) If your speedometer has an uncertainty of 2.0km/h at a speed of 90km/h, what is the percent uncertainty? (b) If it has the s
Airida [17]

Answer:

a) 2.22 %

b) Range would be 60±1.998 km/h

Explanation:

Percentage uncertainty indicates the error of a reading. With the percentage uncertainty error for a measurement can be calculated.

a) Percentage uncertainty would be

2\times \frac{100}{90}=2.22%

Percent uncertainty is 2.22%

b) For 60 km/h error would be

\frac{2.22}{100}\times 90=1.998

Range would be 60±1.998 km/h

6 0
4 years ago
What is linear speed called when something moves in a circle
Dmitry [639]

Answer: Tangential Velocity

The tangential velocity V is defined as the angular velocity \omega by the radius r of circular motion. As shown below:

V=\omega. r

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4 0
4 years ago
Arrange the following substances in order of decreasing magnitude of lattice energy.
kolbaska11 [484]
The formula is F = ( q1 * q2 ) / r ^ 2 
<span>where: q is the individual charges of each ion </span>
<span>r is the distance between the nuclei </span>
<span>The formula is not important but to explain the relationship between the atoms in the compounds and their lattice energy. </span>

<span>From the formula we can first conclude that compounds of ions with greater charges will have a greater lattice energy. This is a direct relationship. </span>
<span>For example, the compounds BaO and SrO, whose ions' charges are ( + 2 ) and ( - 2 ) respectively for each, will have greater lattice energies that the compounds NaF and KCl, whose ions' charges are ( + 1 ) and ( - 1 ) respectively for each. </span>

<span>So Far: ( BaO and SrO ) > ( NaF and KCl ) </span>

<span>The second part required you find the relative distance between the atoms of the compounds. Really, the lattice energy is stronger with smaller atoms, an indirect relationship. </span>
<span>For example, in NaF the ions are smaller than the ions in KCl so it has a greater lattice energy. Because Sr is smaller than Ba, SrO has a greater lattice energy than BaO. </span>

<span>Therefore: </span>
<span>Answer: SrO > BaO > NaF > KCl </span>
5 0
4 years ago
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Why empty tin-cans ocillating for a longer time​
Natalija [7]

Answer: When you speak into the can, your voice creates air vibrations that travel into the can, vibrate the bottom of the can, which in turn vibrates the string all the way over to the other can, in turn vibrating the other can's bottom, then the air again.

Explanation:

3 0
3 years ago
What forces do a free body diagram analyze?
Bogdan [553]

Friction, gravity, normal force, drag force, tension force and human force are the forces that occurs on free body.

<h3>What are the forces in a free body diagram?</h3>

There are large number of external forces acting on an object such as friction, gravity, normal force, drag force, tension force and human force due to pushing or pulling. These forces can cause the motion of the free body which is present at rest form or can stop a body which is moving. A free-body diagram is a useful means of describing and analyzing all the forces that act on a body to determine equilibrium.

So we can conclude that friction, gravity, normal force, drag force, tension force and human force are the forces that occurs on free body.

Learn more about force here: brainly.com/question/388851

#SPJ1

5 0
2 years ago
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