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1 year ago

Thermal Energy and Kinetic Molecular Theory Quick Check

1 answer:

4 0

The Kinetic Molecular Theory is a scientific model that states atoms in a compound are found in a constant state of motion (movement).

<h3>What is the Kinetic Molecular Theory?</h3>

The Kinetic Molecular Theory is a scientific model that states atoms in a compound are found in a constant state of motion (movement).

Thermal energy refers to the movement of particles and therefore both concepts are interrelated.

In conclusion, the Kinetic Molecular Theory is a scientific model that states atoms in a compound are found in a constant state of motion (movement).

Learn more about the Kinetic Molecular Theory here:

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If you use a horizontal force of 32.0 N to slide a 12.5 kg wooden crate across a floor at a constant velocity, what is the coeff

sergejj [24]

Answer:

Value of coefficient of kinetic friction is 0.26 .

Explanation:

Given:

Mass of wooden crate, m = 12.5 kg.

Horizontal force to keep the block moving with constant velocity, F = 32.0 N.

Since, the block is moving with constant velocity.

So, net force experience by it is zero.

Therefore, fore of friction is equal to applied force.

Now, force of friction , $F=\mu_kN$ ( here $\mu_k$ is coefficient of kinetic friction and N is normal force)

Therefore, $\mu_kN=\mu_k\times mg=\mu_k\times 12.5 \times 9.8=122.5\times \mu_k$

Now, both forces are equal.

$122.5\times \mu_k=32\\\mu_k=\dfrac{32}{122.5}=0.26$

The value of coefficient of kinetic friction is 0.26 .

Hence, it is the required solution.

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3 years ago

Ill give brainlist if you get it righttt...Radiant energy travels in the form of electromagnetic waves. Which statement describe

erastovalidia [21]

Answer:

Both types of waves transfer energy

Explanation:

I think that's right

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3 years ago

What dos the line of red semicircles maen on the weather map

PIT_PIT [208]

The red semicircle shown in the weather chart represents warm front.

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3 years ago

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If the theoretical yield of a reaction is 22.7 g and the actual yield is 21.0 g , what is the percent yield?

guajiro [1.7K]

Percentage yield = actual yield/theoretical yield

So divide 21.0 g by 22.7 g and multiply it by 100 to find the percentage yield

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3 years ago

Could someone please HELP ME

scoundrel [369]

a) chemical energy

b) by electricity

(i) Light

(ii) thermal transfer

<em>By </em><em>Benjemin</em>

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2 years ago