The materials that are conductors are Metal doorknob, Silver, Gold, Copper, Metal coat hanger, Paper clip, while insulators are Carpet, Wood, Rubber, Bulletin board, Clothing, Plastic.
<h3>
What are electric conductors?</h3>
Conductors are materials that allow electric current to pass through them.
<h3>What are Insulators?</h3>
Insulators are materials that do not allow electric current to pass through them.
<h3>Examples of conductors</h3>
- Metal doorknob
- Silver
- Gold
- Copper
- Metal coat hanger
- Paper clip
<h3>Examples of insulators</h3>
- Carpet
- Wood
- Rubber
- Bulletin board
- Clothing
- Plastic
Learn more about conductors and insulators here: brainly.com/question/492289
What is that supposed to mean?
Answer:Total atmospheric mass is 5.1480×1018 kg (1.135×1019 lb), about 2.5% less than would be inferred from the average sea level pressure and Earth's area of 51007.2 megahectares, this portion being displaced by Earth's mountainous terrain.
Answer:
v = 5.24 m/s
Explanation:
Given that,
No of spokes of a Ferris wheel = 60
The diameter of a wheel, d = 100 m
Radius, r = 50 m
It makes one rotation every 60 seconds.
We need to find the speed of the passengers when the Ferris wheel is rotating at this rate. Let it is v. It can be calculated as follows :

or
v = 5.24 m/s
So, the speed of the passengers is 5.24 m/s. Hence, the correct option is (A).