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vlabodo [156]
3 years ago
9

Which form of energy moves spontaneously from hot objects to cold objects?

Physics
1 answer:
Mumz [18]3 years ago
6 0

Answer:

heat

Explanation:

google ( ╹▽╹ )✧◝(⁰▿⁰)◜✧

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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
Differentiate between a derived quantity and a derived unit.
Inessa [10]

Explanation:

Derived quantities are quantities dependent on fundamental quantities while derived units are the units of these quantities

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3 years ago
HELP MEEEEE!!!!!!!!!!A student make a drawing of an aluminum atom.Which of these should the student show in the nucleus of the a
TEA [102]
I would say B. Neutrons
8 0
4 years ago
The electric potential difference between the ground and a cloud in a particular thunderstorm is 2.5 × 109 V. What is the magnit
muminat

Answer:

U = - 4 x 10^{-10}

Explanation:

ΔV = potential difference = 2.5 * 10^9 Volts

q = charge on electron = -1.6 * 10^{-19} C

electric potential energy is given as

U = q ΔV = ( -1.6 * 10^{-19}  ) ( 2.5 * 10^9  )

               = - 4 x 10^{-10}

6 0
3 years ago
What is the frequency of highly energetic ul-
Mnenie [13.5K]

Frequency = (speed) / (wavelength)

Frequency = (3 x 10⁸ m/s) / (124 x 10⁻⁹ m)

Frequency = <em>2.42 x 10¹⁵ Hz</em>

8 0
3 years ago
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