Question

1) what is atom ?
2) what is gravitational?​

Answer 1

Answer:

Atoms are the basic units of matter and the defining structure of elements. ... We now know that atoms are made up of three particles: protons, neutrons and electrons — which are composed of even smaller particles, such as quarks.

In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The direction of the force is in a straight line between the two bodies and is attractive. ... The acceleration g=F/m1 due to gravity on the Earth can be calculated by substituting the mass and radii of the Earth into the above equation and hence g= 9.81 m s-2.

Answer 2

Answer:

1)all the substance are made of small particles know as atoms

2)the force through which any object is get attracted towards the earth is called gravity