Keeping in mind that the conversion between calories and Joules is
we can write the conversion factor using the kilocalories:
The energy released in our problem is
so we can set a simple proportion to find its equivalent in kcal:
from which we find:
It is the ratio of distance an object moves to the amount of time needed to travel the distance.
Option b.
The force between two charged particles is an electrostatic force. The intensity of this force is given by the following formula:
Where q1 and q2 are charges r is the distance, and k_c is Coulomb's constant.
Coulomb's constant has the value of:
When we plug all the given values into the formula we get:
Negative sign means that force is attractive.
The ground is a foundation for many of the things of our lives. It is the foundation for the buildings in our life such as our houses, schools, work, hospital, and so on. It is the foundation for our lives that we often take for granted and it nurtured the trees and nature around us.