Electric force occurs between positive and negative electric charge. It can be calculated with formula 
where F is force, Q1 and Q2 are charges, A is area of object usually ball (
) because we describe charges as points in space like electrons and protons, 
is a natural dielectric constant of empty space or vacuum (
) and 
also known as relative dielectric variable.
There are two types of the force:
1. Attractive electric force
2. Repulsive electric force
Attractive electric force occurs between positively and negatively charged objects while repulsive occurs between equally charged objects for eg. (positive and positive will repulse).
Room heaters are placed on the floor of a room so that the air heated by it rises up and sets up the convection current in the room quickly and uniformly.
It is Humid Continental but i could be wrong
Answer:
appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity
Explanation:
The adaptation of a cheetah is shown in the image which shows it running is its long and strong legs to run fast which is denoted as option B.
<h3>What is Adaptation?</h3>
These are the physical and behavioral features which ensures that they survive in their changing environment.
Cheetahs are known to have long and strong legs which is the reason why it runs at a very high speed.
Read more about Adaptation here brainly.com/question/29594
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