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STatiana [176]
3 years ago
10

Which device may be used to throttle and vaporize liquid refrigerant before it enters the compressor?

Physics
1 answer:
elena55 [62]3 years ago
3 0
Answer: An expansion valve.

Explanation:
The expansion valve is a copper tubing that contains a small orifice. The orifice restricts the flow of the refrigerant and makes it undergo a severe drop in pressure and temperature when it exits the orifice.
The temperature drop provides the cooling required in the cooling coils of the refrigerator.

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A negatively charged object is placed within a positive electric field what happens to the object
Anvisha [2.4K]

The object becomes neutralized in charge. The positive charge in the field neutralizes the negative charge in the object.

8 0
4 years ago
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Lila is using a Bunsen burner. She has all of her chemicals on her workstation. Which would be the best lab practice?
morpeh [17]
<span>
putting the burner on a stand to keep it away from chemicals 
</span>Lila is using a Bunsen burner. She has all of her chemicals on her workstation. Which would be the best<span> lab practice? 
</span>
8 0
3 years ago
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1<br> Describe the force of gravity (F) in your own words
jok3333 [9.3K]

Answer:

My Words

Gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects.

Explanation:

Not my own words

The gravitational force is a force that attracts any two objects with mass. We call the gravitational force attractive because it always tries to pull masses together, it never pushes them apart. In fact, every object, including you, is pulling on every other object in the entire universe!

7 0
3 years ago
Darlene kicks a soccer ball off the ground and in the air with an initial velocity of 34 feet per second. Using the formula H(t)
Levart [38]
At maximum height, the velocity of the ball is 0.
v = u + at
0 = 34 - 32.2t
t = 1.06 seconds

In H(t), s = 0 because the ball is initially on the ground.

H(t) = -16(1.06)² + 34(1.06)
H(t) = 18.1 feet
4 0
3 years ago
An airplane that travels 550 mph in still air encounters a 50​-mph headwind. how long will it take the plane to travel 1250 mi i
Natali [406]

As the headwind comes at the head of the plane, therefore 50 mph headwind slows the plane down.

Thus actual speed of plane with headwind, v=550- 50=500 mph

Now using the formula , velocity= \frac{distance}{time}

 500 mph = \frac{1250 mile}{time}

time = \frac{1250 mil}{500 mph}

time = 2.5 hour

Hence plane will take time to complete the distance 1250 mile in 2.5 hours

5 0
3 years ago
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