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Dmitry_Shevchenko [17]
3 years ago
6

What causes dust particles to move with brownian motion answers?

Physics
1 answer:
valina [46]3 years ago
3 0
When atoms that are shaking with kinetic energy collide with the dust particles, it causes the dust particles to move with the Brownian motion.

Hope this helps ;) 
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A steel, rigid container is filled with an ideal gas. The gas inside is heated such that its temperature, as measured in kelvin,
nikitadnepr [17]

Answer:

If the gas inside a rigid steel vessel (constant volume) is heated in such a way that its temperature, measured in Kelvin degrees, doubles then <u><em>the internal pressure will increase by a factor of 2</em></u>.

Explanation:

Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T} =k

where V = volume, T = temperature, K = Constant

This law indicates that the ratio between pressure and temperature is constant.

This law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of shocks against the walls increases, that is, the pressure increases. That is, <em>the gas pressure is directly proportional to its temperature.</em> This must be fulfilled since the relationship must remain constant

In short, when there is a constant volume, as the temperature increases, the gas pressure increases. And when the temperature decreases, gas pressure decreases.

It is desired to study two different states, an initial state and an final state. You have a gas that is at a pressure P1 and at a temperature T1 at the beginning of the experiment. When the temperature varies to a new T2 value, then the pressure will change to P2, and the following will be true:

\frac{P1}{T1} =\frac{P2}{T2}

Given the above, it is possible to say that <u><em>if the gas inside a rigid steel vessel (constant volume) is heated in such a way that its temperature, measured in Kelvin degrees, doubles then the internal pressure will increase by a factor of 2 (doubles too) </em></u>

8 0
3 years ago
Item 16 The weight w (in pounds) of an object varies inversely with the square of the distance d (in miles) of the object from t
S_A_V [24]

Answer:

190.3759 pounds

Explanation:

If the astronaut weighs 210 pounds when he is at a distance of 3978 miles from the Earth's center, then he will weigh

210 [3978 / (3978 + 200) ]² = 190.3759 pounds

at an altitude of 200 km.

8 0
3 years ago
Why would it be desirable to use an energy resource that does not produce greenhouse gases?
Art [367]

C. Greenhouse gases contribute to climate change

Explanation:

It is desirable to use an energy source that does not produce greenhouse gases because these gases contributes a whole lot to climate change.

Over the years, studies have shown that the primary use of fossil fuels have significant lead to changes in the climate.

  • Greenhouse gases are produced during the combustion of fossil fuels.
  • The most important gas produced in this process is the carbon dioxide.
  • The greenhouse gases prevents long range radiation from leaving the earth.
  • They waves interacts with the gases and warms the earth surface.
  • Anomalous concentration of the gases causes more warming of the earth surface.
  • This leads to a change in climate.

Learn more:

Greenhouse gases brainly.com/question/4580761

#learnwithBrainly

3 0
3 years ago
Ricardo is on vacation, doing some mountain climbing. He notices that the higher he goes up a mountain, the colder he feels. He
Irina-Kira [14]

Answer:

B. an inverse relationship

Explanation:

Here is the complete question

Ricardo is on vacation, doing some mountain climbing. He notices that the higher he goes up a mountain, the colder he feels. He remembers his physics teacher teaching about these types of relationships. What is the type of relationship between mountain elevation and temperature? A. a positive relationship B. an inverse relationship C. a neutral relationship D. a direct relationship

Solution

It is an inverse relationship because, as Ricardo's mountain elevation increases, he feels colder. So, as his mountain elevation increases, the temperature decreases.

Since one variable decreases while the other increases, it can only be an inverse relationship.

Let h be Ricardo's mountain elevation and T his temperature. So by inverse proportionality,

h ∝ 1/T

h = k/T

hT = k = constant

So, we have an inverse relationship and B is the answer.

8 0
2 years ago
Read 2 more answers
You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 275 N in the positive x di
Volgvan

Answer:

f = 347.08 N

Explanation:

The frictional force exerted by the floor on the refrigerator is given as follows:

f = \mu R = \mu W

where,

f = frictional force = ?

μ = coefficient of static friction = 0.58

W = Weight of refrigerator = mg

m = mass of refrigerator = 61 kg

g = acceleration due to gravity = 9.81 m/s²

Therefore,

f = \mu mg\\f = (0.58)(61\ kg)(9.81\ m/s^2)\\

<u>f = 347.08 N</u>

8 0
2 years ago
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