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3 years ago

Explain the working of thermos flask in simple and easy words

Physics

1 answer:

AleksandrR [38]3 years ago

7 0

Answer:

a thermos is designed to keep hot things hot by not allowing heat to escape.

Explanation:

A thermos is a bottle with a double-walled container inside of it. The air between the two walls is sucked out during construction, creating a vacuum.

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The speed of both cars is the same ... 80 km per hour.

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3 years ago

A helium tank holds a volume of .02 m^3 at a pressure of 15.5*10^6 Pa and a temperature of 293 K. How many spherical balloons wi

lukranit [14]

Answer:

Explanation:

We shall find the volume of stored gas at atmospheric pressure .

P₁ V₁ = P₂ V₂

15.5 x 10⁶ x .02 = 10⁵ x V₂ ( atmospheric pressure is 10⁵ Pa )

V₂ = 3.1 m³

volume of one balloon = 4/3 x π r³ , r is radius of balloon

= 4/3 π x .11³

= .050658 m³

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= 3.1 / .050658

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3 years ago

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fgiga [73]

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2 years ago

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telo118 [61]

Answer:

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3 years ago

A 10 kg box accelerates for at a rate of 12 miles per second what is the force acting on the box

lions [1.4K]

193080N

Explanation:

Given parameters:

Mass of the box = 10kg

Acceleration = 12miles per second

Unknown:

Force on the box = ?

Solution:

The force acting on the box is function of the mass and acceleration of the box.

Force = mass x acceleration

Now we need to convert the given acceleration to m/s

1000m = 1km

1.609km = 1miles

$\frac{12 miles }{seconds }$ x $\frac{1.609km}{1miles}$ x $\frac{1000}{1km}$

= 19308m/s

Force on box = 10 x 19308 = 193080N

Learn more:

Force problems brainly.com/question/4033012

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3 years ago

Explain the working of thermos flask in simple and easy words ​

Explain the working of thermos flask in simple and easy words