The mass tells you the amount of matter or substance that makes up an object.
The weight tells you the measure of the matter.
The volume tells you the amount of space/size taken up
Because the coefficient of friction depends on the surface
X-ray)
because Electromagnetic waves are in act
Answer:
Distance, r = 700.31 m
Explanation:
Mass of two objects, 
Force between the objects , 
We need to find the distance between the two objects. The force of gravitational between two objects is given by :

So, the distance between the objects is 700.31 m.
A) Metal
B) Non-metal
C) Non-metal
D) Metal