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vfiekz [6]
3 years ago
8

Which of the following processes could NOT be used to separate dissolved particles from the liquid in a solution? *

Physics
2 answers:
eduard3 years ago
8 0

Out of the given options, sublimation processes could not be used to separate dissolved particles from the liquid in a solution.

Answer: Option D

<u>Explanation:</u>

Sublimation is process through which the matter converts directly into a solid state to the gaseous state. The process of sublimation occurs below the triple point temperature or pressure of the substance which is generally not a part of the processes for separation.

The other three options are the process through which one can separate elements from a mixture. Distillation is a technique which helps in separating the original liquid content from a solution. Evaporation and vaporisation are other steps of separation.

DIA [1.3K]3 years ago
5 0

Answer:

Vaporation

Explanation:

In the vaporization or boiling, the passage of particles from the liquid state to the gaseous state occurs completely

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Ugo [173]

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3 years ago
A small 20-kg canoe is floating downriver at a speed of 2 m/s. What is the canoe’s kinetic energy? A. 40 J B. 80 J C. 18 J
rusak2 [61]

A small 20-kg canoe is floating downriver at a speed of 2 m/s. 40 J is the canoe’s kinetic energy.

Answer: Option A

<u>Explanation:</u>

The given canoe has the mass and is being given to move at a speed. Therefore the kinetic energy of the canoe can be calculated using the following method,

Given that mass of the canoe = 20 kg and its speed =1 m/s

As we know that the Kinetic energy has the formula,

\text {Kinetic energy}=\frac{1}{2} \boldsymbol{m} \boldsymbol{v}^{2}

Therefore, substituting the value into the equation, we get,  

K . E .=\frac{1}{2} \times 20 \times 2^{2} = 40 J

4 0
3 years ago
Read 2 more answers
A high power line carries a current of 1.0 kA. What is the strength of the magnetic field this line produces at the ground, 10 m
solmaris [256]

Answer:

The strength of the magnetic field that the line produces is 2x10^{-5} Tesla.

Explanation:

From Biot-Savart law, the equation to determine the strength of the magnetic field for any straight wire can be deduced:

           

B = \frac{\mu_{0}I}{2\pi r} (1)      

                                     

Where \mu_{0} is the permiability constant, I is the current and r is the distance from the wire.    

             

Notice that it is necessary to express the current, I, from kiloampere to ampere.

I = 1.0kA \cdot \frac{1000A}{1kA} ⇒ 1000A

Finally, equation 1 can be used:

B = \frac{(4\pi x10^{-7}T.m/A)(1000A)}{2\pi (10m)}    

           

B = 2x10^{-5}T    

Hence, the strength of the magnetic field that the line produces is 2x10^{-5} Tesla.

         

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3 years ago
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The radio frequencies push one air molecule that then bumps into a different air molecule.....which then hits another and another causing a line of crashing molecules that lead inside your ear and hits your ear drum causing it to vibrate which causes the sounds.
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3 years ago
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Norway, Sweden, and Finland (Scandinavia) have what kind of climates??
Romashka [77]
They have a mild climate. 
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