Answer:
You can determine which charge has the solid by rubbing plastic and fur, and bringing near the plastic and the solid to determine if they are repeled or attracted. If they are repeled, the solid is charged negatively and if they are attracted, the solid is charged positively.
Explanation:
In order to determine the charge of the solid (negative or positive) using a piece of plastic and fur, you have to rubb the plastic with the fur (this is charging by friction)
Negative charges are transferred from the fur to the piece of plastic, therefore the plastic is charged negatively.
Then, you have to bring near the solid and the plastic. If them are repeled, it means that the solid is charged negatively (Because similar charges are repeled)
If them are attracted, it means that the solid is charged positively (Because opposite charges are attracted)
In water, it's drag. Exactly the same as air resistance
only hundreds of times greater.
Hi there! When a shadow is at its shortest is at noon when the sun is overhead.
<h2>T
he average speed for the entire trip is 47.5 m/s .</h2>
It is given that for different time span car have different speed and also the person spend 
in eating lunch and buying gas.
We know , average speed is total distance covered by total time taken .
Therefore , average speed , 
Hence, this is the required solution.
Learn More :
Average speed
https://brainly.in/question/12701198
<u>This is what I think is harmful!
</u>
<u></u>1.) <u>Deadly gases</u> (Example: C<span>arbon Monoxide</span>)
2.) <u>Poison
</u>
3.) <u>Snake bites</u>
(There is to many to list :D)
Have a good Day/Night :D
