3 years ago

A solid metal can absorb heat from another object through which method of heat transfer?

Physics

2 answers:

Artist 52 [7]3 years ago

7 0

The answer is A).Conduction

lianna [129]3 years ago

3 0

Answer:

This method is called conduction.

Explanation:

Conduction is the mode of heat transfer in which heat is transferred from one part of the medium to the another from particle to particle in the direction of fall of temperature without actual movement of heated particles.

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3 years ago

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A 24 liter tank contains ideal helium gas at 27 degrees C anda pressure of 22 atm. How many moles of gas are in the tank?

frozen [14]

Answer:

d)21.5 moles

Explanation:

Given that

L = 24 L

T = 27 °C = 300 K

P = 22 atm

We know that ideal gas equation

P V = n R T

P=Pressure ,V= Volume ,n=Moles ,R=Universal gas constant ,T=Temperature

Now by putting the values

22 x 24 = n x 0.08206 x 300

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n= 21.5 moles

Therefore the number of moles will be 21.5 moles.

The answer is "d".

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Which velocity-time graph matches the position-time graph?

skelet666 [1.2K]

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A train car with mass m1 = 515 kg is moving to the right with a speed of v1 = 7.5 m/s and collides with a second train car. The

Anna [14]

Answer:

For the first situation, we first need to find the mass of the second train car.

In order to do that, we apply the conservation of the amount of movement:

$515*7.5+m2*0=(m1+m2)*4.8$