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aleksandr82 [10.1K]
3 years ago
6

The bottom of cooking utensils are often kept black. Give reason​

Physics
1 answer:
stepan [7]3 years ago
7 0

Answer:

absorb more heat and get heated quickly

Explanation:

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Helium gas at 20 °C is confined within a rigid vessel. The gas is then heated until its pressure is doubled. What is the final t
victus00 [196]

Answer:

586 K

Explanation:

Let P is the initial pressure.

Initial temperature, T₁ = 20°C = 293 K

Final pressure, P₂ = 2P

We need to find the final temperature of the gas.

The relation between the pressure and the temperature is as follows

P\propto T\\\\or\\\\\dfrac{P_1}{P_2}=\dfrac{T_1}{T_2}

Put all the values,

\dfrac{P}{2P}=\dfrac{293}{T_2}\\\\\dfrac{1}{2}=\dfrac{293}{T_2}\\\\T_2=2\times 293\\\\T_2=586\ K

So, the final temperature of the gas is 586 K.

4 0
3 years ago
Please Help!!! It's for a quiz!!
Sphinxa [80]

Answer:

38.8 m/s

Explanation:

Force F(x) = 6 - 2x + 6x²

work

W=\displaystyle\int_{0}^{13.9}F(x)dx=\displaystyle\int_{0}^{13.9}(6-2x+6x^2)dx

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W = mv²/2=7v²/2 = 3.5v² = 5261

v = 38.8 m/s

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2 years ago
What skills are used to move the body from one place to another? *
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Anit [1.1K]

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Transformers are devices used in electrical circuits to change the voltage of electricity flowing in the circuit.

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I hope this helped !

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When current is passed through a hot plate, it converts _______ energy into ________ energy
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