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3 years ago

Because the silt (dirt particles) in muddy water eventually settles out, the muddy water is a ______________ .

Physics

2 answers:

Anna35 [415]3 years ago

7 0

Because the silt (dirt particles) in muddy water eventually settles out, the muddy water is a __suspension__ .

irga5000 [103]3 years ago

4 0

Answer: Option (d) is the correct answer.

Explanation:

A homogeneous mixture that contains two or more substances is known as a solution.

A compound is a substance that contains two or more different atoms. For example, NaCl is a compound.

A homogeneous mixture is a mixture whose particles are evenly or equally distributed throughout the mixture. For example, salt dissolved in water is a homogeneous mixture.

A suspension is a mixture in which particles are not evenly distributed throughout the mixture. It is also called a heterogenous mixture and after a certain interval some particles in a suspension mixture settles down at the bottom.

A colloid is a mixture that contains particles which are microscopically dispersed evenly throughout the solvent.

Thus, dirt particles in water will settle at the bottom after a certain interval of time.

Hence, we can conclude that because the silt (dirt particles) in muddy water eventually settles out, the muddy water is a suspension.

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a current of 180 mini amphere passes through a conductor for 5minute calculate the quantity of electricity transported

oksano4ka [1.4K]

Answer:

Explanation:

You can calculate the total electric charge that passes through the conductor as $q=It=(180\times 10^{-3})(5\times 60)= 54 C$ . It means that the number of electron that passes through the conductor is:

$n=\frac{q}{e}=\frac{54}{1.6\times 10^{-19}}=33.75\times 10^{19}$

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2 years ago

A student gives a 5.0 kg box a brief push causing the box to move with an initial speed of 8.0 m/s along a rough surface. The bo

WITCHER [35]

Answer:

The time taken to stop the box equals 1.33 seconds.

Explanation:

Since frictional force always acts opposite to the motion of the box we can find the acceleration that the force produces using newton's second law of motion as shown below:

$F=mass\times acceleration\\\\\therefore acceleration=\frac{Force}{mass}$

Given mass of box = 5.0 kg

Frictional force = 30 N

thus

$acceleration=\frac{30}{5}=6m/s^{2}$

Now to find the time that the box requires to stop can be calculated by first equation of kinematics

The box will stop when it's final velocity becomes zero

$v=u+at\\\\0=8-6\times t\\\\\therefore t=\frac{8}{6}=4/3seconds$

Here acceleration is taken as negative since it opposes the motion of the box since frictional force always opposes motion.

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3 years ago

The waves with the lowest energy and lowest frequencies of the electromagnetic spectrum are the

Andru [333]

<span>The waves with the lowest energy and lowest frequencies of the electromagnetic spectrum are the "Radio waves"

So, option B is your answer

Hope this helps!
</span>

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3 years ago

Fehling's solution is added to the counters of test tube b after about 3 minutes and it turns brick red.what food substance was

hjlf

The food substance being used which turned Fehling's solution to brick red is a reducing sugar.

<h3>What is Fehling's solution?</h3>

This is an indicator which is used to test for the presence of reducing sugar or aldehydes in a solution.

Brick red precipitate of copper(I) oxide is formed when it tests positive to compounds such as glucose etc.

Read more about Fehling solution here brainly.com/question/3262179

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2 years ago

What is the primary force that causes the seafloor to spread and continents to drift?

jekas [21]

The primary force would be Thermal Convection, it pushes it and thus makes continents drift.
-Hope that helps, Nexxmexx :3

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3 years ago