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4 years ago

Which state of matter is least likely to transfer heat by convection? solid, liquid, gas, plasma

2 answers:

7 0

Hello,

Here is your answer:

The proper answer to this question is A "solid". Solid will be least likely transfer heat on something metal!

Your answer is solid!

If you need any ore help feel free to ask me!

Hope this helps!

Aneli [31]4 years ago

4 0

Answer: Option (a) is the correct answer.

Explanation:

Convection is defined as the process in which a fluid (liquid or gas) when heated then more dense (cooler) substance sinks ate the bottom whereas less dense (hotter) substance will rises at the top.

For example, boiling of cold water.

On the other hand, solid substances are able to transfer heat through the process of conduction and not convection.

Conduction is defined as a process in which two objects of different temperature are placed adjacent to each other then there will occur transfer of heat from hotter object to colder object till their temperature becomes equal.

Thus, we can conclude that solid state of matter is least likely to transfer heat by convection.

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Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will t

Kay [80]

<h2>The time taken is 1 second </h2>

Explanation:

Suppose the first diamond falls for t seconds

The downward displacement S₁ = u t + $\frac{1}{2}$ g t²

here u = 0 , because it was at rest initially

Thus S₁ = $\frac{1}{2}$ g t² I

Similarly second diamond moves for time ( t - 0.9 ) sec

The distance covered by it is

S₂ = $\frac{1}{2}$ g (t - 0.9 )²

The separation between the two is 13 m

Thus S₁ - S₂ = 13 m

$\frac{1}{2}$ g t² - $\frac{1}{2}$ g t² + 0.9 g t - 0.4 g = 13

or 9 t = 13 - 4 = 9

Hence t = 1 sec

8 0

3 years ago

A uniform magnetic field is in the positive z direction. A positively charged particle is moving in the positive x direction thr

Flura [38]

Answer:

We apply an electric field in the negative y direction

Explanation:

Since A uniform magnetic field is in the positive z direction and A positively charged particle is moving in the positive x direction through the field, the magnetic force acting on the positively charged particle is in the positive y direction according to Fleming's right-hand rule.

For the net force on the particle to be zero, we apply an electric field in the negative y direction to create an electric force on the positively charged particle, so as to cancel out the magnetic force.

6 0

3 years ago

I WILL MARK YOU AS BRAINLIEST IF RIGHT

butalik [34]

Answer:

25.4 miles per hour

Explanation:

speed=distance/time

speen=524/20.6 hours

=25.4 miles per hour

6 0

3 years ago

If you're swimming underwater and knock two rocks together, you will hear a very loud noise. But if your friend above the water

Svetradugi [14.3K]

Answer:

The air-water interface is an example of boundary. The transmitted portion of the initial wave energy is way smaller than the reflected portion. This makes the boundary wave hard to hear.

When both the source of the sound and your ears are located underwater, the sound is louder because the sound waves can travel directly to your ear.

Explanation:

The air-to-water sound wave transmission is inhibited because more of reflection than transmission of the wave occurs at the boundary. In the end, only about 30% of the sound wave eventually reaches underwater. For sound generated underwater, all the wave energy is transmitted directly to the observer. Sound wave travel faster in water than in air because, the molecules of water are more densely packed together, and hence can easily transmit their vibration to their neighboring molecules, when compared to air.

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4 years ago

Which statement describes the chemical property of gold that results in its

LiRa [457]

Answer:

D. It is relatively inert.

Explanation:

8 0

3 years ago