Answer:
mass number = protons + neutrons
Answer:
Option C.
Explanation:
A scientific theory or simply theory can be defined as an explanation which is well validated of some natural aspects based on factual set proved by repeated experimentation.
The facts when found correct after experimentation and can be unified results in the formation of theory which can further be applied to predict some of the future occurring phenomena or events in the nature or world.
The velocity of the earth in its orbit around the sun is
Explanation
Given that the distance between sun and earth is 149500,000,000m
.
This is the radius of the nearly circular orbit of the earth around the sun.
r=149,500,000,000m=