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Anika [276]
3 years ago
13

In 3–5 sentences, explain why electrical wires are often constructed from metal coated with rubber, and how that is similar to m

etal pans having rubber or plastic handles.(4 points)
Chemistry
1 answer:
stich3 [128]3 years ago
7 0

Answer:

Covering electrical wires in plastic guarantees that the electrons flowing through the wires will not flow through your body when the wire is touched.

Explanation:

"The purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact with other conductors of electricity, which might result in an unintentional electric current through those other conductors."

https://www.allaboutcircuits.com/worksheets/wire-types-and-sizes/#:~:text=Most%20electrical%20wire%20is%20covered,or%20plastic%20coating%20called%20insulation.&text=The%20purpose%20of%20insulation%20covering,current%20through%20those%20other%20conductors.

https://www.hunker.com/13414152/why-are-electrical-wires-covered-in-plastic

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Considering all types of aerosols, what is their net effect on the climate system:
timurjin [86]
<span> aerosols are </span><span><span>compressed gases and </span>hydrocarbons, such as nitrous oxide, as propellants. the aerosols are green house gases, that contributes to the heating of the surface of the earth. this is why global warming is one of the greatest environmental problem to date </span>

6 0
3 years ago
Read 2 more answers
How many electrons does an aluminum ion have with a +3
Varvara68 [4.7K]

Answer:10

Explanation:

3 0
3 years ago
To test the quality of water sources in her area, Shameka collects five samples from each water source and tests the quality of
Blizzard [7]

Answer:

The answer is "Verification of results ".

Explanation:

The scientific system consisted inside an iterative or cyclical process which experimental results and technically confirm a theory. There are four things which scientific design aims people explain:  

  • Subject of investigation characterization.  
  • Hypothesis from its consequences of its characterization.  
  • Forecasts.  
  • Experimentation which show the precision and consistency of the hypothesis.  

Its first stage of analysis involves collecting the samples taken for the current context, that are the focus of discussion, and then testing the samples taken to determine the absorbance of soft and hard salts throughout the water. It is required for water quality to be determined. Therefore, the collection and testing of samples falls under the scientific design category of classification, whereby Shamekha tried to verify the findings.

4 0
3 years ago
A sound wave has a wavelength of 0.450
Karolina [17]

Answer:

The wave's frequency is <u><em>733 hertz</em></u>.

Explanation:

The wavelength (λ) is the minimum distance between two points of the wave that are in the same state of vibration.

Frequency (f) is the number of vibrations that occur in a unit of time.

The speed of propagation (v) is the speed with which the wave propagates in the middle. Relate wavelength (λ) and frequency (f) inversely proportionally using the following equation: <em>v = f * λ</em>.

In this case you know that:

  • Wavelength of the sound wave (λ) = 0.450 meters
  • Speed of the sound wave (v)= 330 meters per second= 330 \frac{meters}{second}

Replacing you get:

330 \frac{meters}{second} = f* 0.450 meters

Then:

f=\frac{330 \frac{meters}{second} }{0.450 meters}

f=733.33 hertz≅733 hertz

Finally,  <u><em>the wave's frequency is 733 hertz.</em></u>

6 0
3 years ago
A neutral atom has the atomic number of 10 and the atomic mass is 22 amu. what is the number of neutrons and electrons for this
Leviafan [203]

Hey there!

This atom has 10 protons.

If this atom has an atomic mass of 22, that means the sum of protons and neutrons is 22.

p + n = 22

p = 10

Which makes this true:

10 + n = 22

Subtract 10 from each side to solve for n, the number of neutrons.

n = 12

An atom that has the atomic number of 10 and an atomic mass of 22 has 12 neutrons.

Hope this helps!

8 0
3 years ago
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