The force between them if the distance between them is doubled is a. F/4
Explanation:
- To find the answer, we can use Coulomb's law where it is defined as the force between two point charges is directly proportional to the magnitude of the point charges and proportional inversely to the distance between them.
- The equation can be written as,
where k is the Coulomb constant, 
are the point charges, and r is the distance between these two point charges. - To find the answer to this question, just substitute 2r in the place of r hence, you will get
as the new force when the distance is doubled.
Soil and air because it is needed for the development of living beings
Answer:
The mechanism is natural selection.
Explanation:
Natural selection is the mechanism that these air-breathing fishes have gone through to survive. This mechanism allows species to survive and reproduce due to differences in the phenotypes of every individual in the specie, throughout the time the heritable traits that every individual inherits changes according to the environment and the characteristics of its ancestors.
Answer:
Uranus
Explanation:
A new study finds that the same impact that knocked Uranus sideways may have also created the planet's moons. ... However, Uranus is an oddball in that its axis of spin is tilted by a whopping 98 degrees (relative to the plane of the solar system), meaning it essentially spins on its side.
