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dybincka [34]
4 years ago
6

Help with these questions thank you

Physics
1 answer:
ehidna [41]4 years ago
5 0
For the first answer it is blue.
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If the pressure of the gas is doubled while the volume is held constant, what happens to its temperature? [Section 10.4] If the
atroni [7]

Answer:

That is, if P is doubled, T increases by a factor of two.

Explanation:

For an ideal gas, we can write the following equation:

P*V = n* R* T

If we take an initial state, with parameters P₁, V₁, T₁, we can write the equation as follows:

P₁* V₁ = n* R* T₁ (1)

Now, we are told that the same mass of gas, changes its state, doubling its pressure, while the volumen is held constant.

We can use the same equation as above, replacing P₁, V₁, T₁ by the new values P₂, V₂, T₂, where P₂ = 2* P₁, and V₂ = V₁, as follows:

2* P₁* V₁ = n* R* T₂ (2)

Dividing both sides in (2) and (1), we get:

T₂ / T₁ = 2

This means that if the pressure is doubled, temperature increases by a factor of two.

7 0
3 years ago
Which of the following statements about social connections today is most accurate?
Vlada [557]

Answer:

is point 2

Explanation:

There is a good cause for concern that technology will create social isolation

8 0
3 years ago
Who makes sure that planes fly in and out of airports safely and do not run into each other in the skies?
larisa [96]

The correct answer to this is:

“Air traffic controllers”

<span>These people are the personnel who is responsible for the safety, orderly, and swift flow of planes flying in and out of airports using the global air traffic control system. They are generally stationed in air traffic control centers and control towers on the airport ground. They monitor the position, speed, and elevation of aircraft in their designated airspace visually and by radar, and give directions to the pilots by radio.</span>

<span> </span>

3 0
3 years ago
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4 0
3 years ago
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A student weighing 200N climbs a flight of stairs 7.0m high in 8s. What power is required to perform this task?
noname [10]

Answer:

Power required, P = 175 watts

Explanation:

It is given that,

Weight of a student, F = mg = 200 N

The student climbs a flight of stairs of height, h = 7 m

Time taken, t = 8 s

We have to find the power required to perform this task. Work done per unit time is called the power required. Mathematically, it is given by :

P=\dfrac{W}{t}

W = work done

t = time taken

P=\dfrac{mgh}{t}

P=\dfrac{200\ N\times 7\ m}{8\ s}

P = 175 watts

Hence, the power required to complete this task is 175 watts.

3 0
4 years ago
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