The radius of a nucleus of hydrogen is approximately
, while we can use the Borh radius as the distance of an electron from the nucleus in a hydrogen atom:
The radius of a dime is approximately
: if we assume that the radius of the nucleus is exactly this value, then we can find how far is the electron by using the proportion
from which we find
So, if the nucleus had the size of a dime, we would find the electron approximately 500 meters away.
This outer covering is the seed<span> coat. </span>Inside<span> of the </span>seed<span> would be </span>a tiny plant called <span>the embryo. The two large parts of the </span>seed<span> are </span>called<span> the cotyledons. The cotyledons are stored food that the </span>young plant<span> will use while it is growing. Monocots are </span>seeds<span> that have only one cotyledon, such as the corn </span>seed<span>.</span>
Answer:
His average speed is 45000
Answer:
Explanation:
Given data:
first case
Distance of electric field from center of sphere is r_1 <R
Electric field at r_1< R
second case
Distance of electric field from centre of sphere is r_1 < 2R
Electric field at r_1< 2R
so, we have