Answer:
towards the mass 
Explanation: We know that the gravitational force is a long range force which is always attractive in nature.
Given that:
- mass

- mass

- mass

The masses are positioned on X-axis at the following points:
- Position of mass

- Position of mass

- Position of mass

Mathematically:
<em>Gravitational force on mass </em>
<em> due to mass </em>
<em> is given by </em>
...................(1)
- where:
= the radial distance between masses
&
=3
Similarly, g<em>ravitational force on mass </em>
<em> due to mass </em>
<em> is given by </em>
............................(2)
- where:
= the radial distance between masses
&
=3
Now, put the respective values in the above equations.


Again,


∵Mass
is in the middle of the masses
&
therefore the forces
&
will attract them in radially opposite direction.
∴
towards the mass 
Answer:
19
Explanation:
The mass of an atom is found in the nucleus: number of protons + number of neutrons; 9 + 10 = 19
The mass number of fluorine is 19
To each carburetor on a gasoline inboard engine a backfire flame arrestor must be attached.This arrestor will <span>prevent flames from the backfire causing a fire on board. Several things are important in order the backfire arrestor to function properly:
- should be</span><span> clean and undamaged.
- If there is a hole in the grid, or oil or gasoline in the grid, or if it is not properly attached, the arrestor will not work correctly.
- must be approved </span><span>by the U.S. Coast Guard</span>
Answer:
A) heat
Explanation:
As kinetic energy increases, so does the heat energy produced. The faster the molecules move, the more heat that is generated.